55.37% is the change from 121 to 188
Calculation steps:
[( 188 - 121 ) ÷ 121] x 100 = 55.37%
Formula
Percentage change = [(188 - 121) / 121] x 100
Subtract the new number by the original number
188 - 121 = 67
67 ÷ 121 = 0.5537190082644629
0.5537190082644629 x 100 = 55.37%