47.56% is the change from 82 to 121
Calculation steps:
[( 121 - 82 ) ÷ 82] x 100 = 47.56%
Formula
Percentage change = [(121 - 82) / 82] x 100
Subtract the new number by the original number
121 - 82 = 39
39 ÷ 82 = 0.47560975609756095
0.47560975609756095 x 100 = 47.56%