74.38% is the change from 121 to 211
Calculation steps:
[( 211 - 121 ) ÷ 121] x 100 = 74.38%
Formula
Percentage change = [(211 - 121) / 121] x 100
Subtract the new number by the original number
211 - 121 = 90
90 ÷ 121 = 0.743801652892562
0.743801652892562 x 100 = 74.38%