I have posted an article about this topic, which I will link below, but as there is so much hot-air blowing around the internet space, I’ve decided to go a little further in clarifying what is going on…..
In fact, there are a few content providers out there who have explained it well, so I will link their content below:

.@PressSec: "It was a mistake for China to retaliate. When America is punched, [President Trump] punches back harder. That's why there will be 104% tariffs going into effect on China tonight… If China reaches out to make a deal, he will be incredibly gracious." pic.twitter.com/9H76xQsmQA
— Rapid Response 47 (@RapidResponse47) April 8, 2025
.@PressSec: "The reciprocal tariff rates that were implemented by country were focused on the monetary tariff that those countries have imposed on the U.S., but also the non-monetary tariff barriers… moving forward, @POTUS will talk to any country that picks up the phone to… pic.twitter.com/8P5OqEstuE
— Rapid Response 47 (@RapidResponse47) April 8, 2025
.@PressSec: President Trump "is not considering an extension or delay [of the tariffs]… It's about time we have a President in the Oval Office who is putting the world on notice." pic.twitter.com/QlsQwm6xg5
— Rapid Response 47 (@RapidResponse47) April 8, 2025
I’m howling 🤣
— Benny Johnson (@bennyjohnson) April 8, 2025
pic.twitter.com/i8vhEmmfVA
JUST IN: 🇺🇸🇨🇳 US President Trump signs executive order officially increasing tariffs on China to 104%. pic.twitter.com/bsKsehcrsm
— BRICS News (@BRICSinfo) April 9, 2025
https://ustr.gov/issue-areas/reciprocal-tariff-calculations
Issue Areas Reciprocal Tariff Calculations
Reciprocal Tariff Calculations
Executive Summary
Reciprocal tariffs are calculated as the tariff rate necessary to balance bilateral trade deficits between the U.S. and each of our trading partners. This calculation assumes that persistent trade deficits are due to a combination of tariff and non-tariff factors that prevent trade from balancing. Tariffs work through direct reductions of imports.
Reciprocal tariff rates range from 0 percent to 99 percent, with unweighted and import-weighted averages of 20 percent and 41 percent.
Introduction
To conceptualize reciprocal tariffs, the tariff rates that would drive bilateral trade deficits to zero were computed. While models of international trade generally assume that trade will balance itself over time, the United States has run persistent current account deficits for five decades, indicating that the core premise of most trade models is incorrect.
The failure of trade deficits to balance has many causes, with tariff and non-tariff economic fundamentals as major contributors. Regulatory barriers to American products, environmental reviews, differences in consumption tax rates, compliance hurdles and costs, currency manipulation and undervaluation all serve to deter American goods and keep trade balances distorted. As a result, U.S. consumer demand has been siphoned out of the U.S. economy into the global economy, leading to the closure of more than 90,000 American factories since 1997, and a decline in our manufacturing workforce of more than 6.6 million jobs, more than a third from its peak.
While individually computing the trade deficit effects of tens of thousands of tariff, regulatory, tax and other policies in each country is complex, if not impossible, their combined effects can be proxied by computing the tariff level consistent with driving bilateral trade deficits to zero. If trade deficits are persistent because of tariff and non-tariff policies and fundamentals, then the tariff rate consistent with offsetting these policies and fundamentals is reciprocal and fair.
Basic Approach
Consider an environment in which the U.S. levies a tariff of rate τ_i on country i and ∆τ_i reflects the change in the tariff rate. Let ε<0 represent the elasticity of imports with respect to import prices, let φ>0 represent the passthrough from tariffs to import prices, let m_i>0 represent total imports from country i, and let x_i>0 represent total exports. Then the decrease in imports due to a change in tariffs equals ∆τ_i*ε*φ*m_i<0. Assuming that offsetting exchange rate and general equilibrium effects are small enough to be ignored, the reciprocal tariff that results in a bilateral trade balance of zero satisfies:

Parameter Selection
To calculate reciprocal tariffs, import and export data from the U.S. Census Bureau for 2024. Parameter values for ε and φ were selected. The price elasticity of import demand, ε, was set at 4.
Recent evidence suggests the elasticity is near 2 in the long run (Boehm et al., 2023), but estimates of the elasticity vary. To be conservative, studies that find higher elasticities near 3-4 (e.g., Broda and Weinstein 2006; Simonovska and Waugh 2014; Soderbery 2018) were drawn on. The elasticity of import prices with respect to tariffs, φ, is 0.25. The recent experience with U.S. tariffs on China has demonstrated that tariff passthrough to retail prices was low (Cavallo et al, 2021).
Findings
The reciprocal tariffs were left-censored at zero. Higher minimum rates might be necessary to limit heterogeneity in rates and reduce transshipment. Tariff rates range from 0 to 99 percent. The unweighted average across deficit countries is 50 percent, and the unweighted average across the entire globe is 20 percent. Weighted by imports, the average across deficit countries is 45 percent, and the average across the entire globe is 41 percent. Standard deviations range from 20.5 to 31.8 percentage points.
References
Boehm, Christoph E., Andrei A. Levchenko, and Nitya Panalai-Nayar (2023), “The long and short of (run) of trade elasticities, American Economic Review, 113(4), 861-905.
Broda, Christian and David E. Weinstein (2006). “Globalization and the gains from variety,” Quarterly Journal of Economics, 121(2), 541-585.
Pujolas, Pau and Jack Rossbach (2024). “Trade deficits with trade wars.” SSRN.
Simonovska, Ina and Michael E. Waugh (2014). “The elasticity of trade: Estimates and evidence,” Journal of International Economics, 92(1), 34-50.
Soderberry, Anson (2018). “Trade elasticities, heterogeneity, and optimal tariffs,” Journal of International Eco
Can we just assume that Congressional members who are against tariffs on China are getting paid by China? pic.twitter.com/EU0i3Ke6rR
— Juanita Broaddrick (@atensnut) April 9, 2025
JUST IN: 🇨🇳🇺🇸 China says it's willing to resolve differences with the US through consultation and negotiation. pic.twitter.com/gqtsyeemOX
— BRICS News (@BRICSinfo) April 10, 2025