75% is the change from 52 to 91
Calculation steps:
[( 91 - 52 ) ÷ 52] x 100 = 75%
Formula
Percentage change = [(91 - 52) / 52] x 100
Subtract the new number by the original number
91 - 52 = 39
39 ÷ 52 = 0.75
0.75 x 100 = 75%
Example