137.25% is the change from 51 to 121
Calculation steps:
[( 121 - 51 ) ÷ 51] x 100 = 137.25%
Formula
Percentage change = [(121 - 51) / 51] x 100
Subtract the new number by the original number
121 - 51 = 70
70 ÷ 51 = 1.3725490196078431
1.3725490196078431 x 100 = 137.25%