75.21% is the change from 121 to 212
Calculation steps:
[( 212 - 121 ) ÷ 121] x 100 = 75.21%
Formula
Percentage change = [(212 - 121) / 121] x 100
Subtract the new number by the original number
212 - 121 = 91
91 ÷ 121 = 0.7520661157024794
0.7520661157024794 x 100 = 75.21%