Maybe it's time to make more kits in other countries including the US or Canada for the North American markets. Assuming there are no such tarriff increases in other countries I will just work with just US numbers. Did a little research and found the following:
Cost of labor for a ship model kit is from 20% to 35% of the total cost.
Cost of labor in China is from $3.00 to $5.05 per hour. For this example I am using $4.
IF these figures are accurate, (a big IF) for a $500 kit at pre tariff increases, labor costs are anywhere from about $100 to $175 Worst case, 35% X $500 =$175 total labor.
$175/$4 = about 44 hours Using a minimum wage in the US of $15 --- $15 X 44= $660. Non-labor costs remain the same- 65% of $500 = $325. Total cost would be $325+$660 = $985
With a tariff of 125%, the $500 kit would increase $625 to $1125.
Price for kits made "locally" could be less than importing, thus the whole point of the tariffs.
I am curious to know the true hourly wage for kit makers in China to see if this makes sense. Perhaps the wage is on the low end, say $2 or $3. If that is the case, it would still be less expensive to import with the high tariff than making locally.
If skilled labor prices versus minimum wage for the folks making parts come into play, the cost to make kits here would probably not be competitive with China prices even with the tariff.
If anyone has better/more accurate and complete information, that would be great to see.