54.55% is the change from 121 to 187
Calculation steps:
[( 187 - 121 ) ÷ 121] x 100 = 54.55%
Formula
Percentage change = [(187 - 121) / 121] x 100
Subtract the new number by the original number
187 - 121 = 66
66 ÷ 121 = 0.5454545454545454
0.5454545454545454 x 100 = 54.55%