83.14% is the change from 350 to 641
Calculation steps:
[( 641 - 350 ) ÷ 350] x 100 = 83.14%
Formula
Percentage change = [(641 - 350) / 350] x 100
Subtract the new number by the original number
641 - 350 = 291
291 ÷ 350 = 0.8314285714285714
0.8314285714285714 x 100 = 83.14%