Economists at UBS pointed to analysis done by the center-right American Enterprise Institute, which calculated that tariffs would have to be set at 42.5% to level out manufacturing imports and exports.
Source: https://www.marketwatch.com/story/heres-how-high-tariff-rates-would-have-to-rise-to-bring-manufacturing-back-to-its-glory-days-even-trump-would-be-shocked-09cca30f?mod=mw_rss_topstories