25% is the change from 520 to 650
Calculation steps:
[( 650 - 520 ) ÷ 520] x 100 = 25%
Formula
Percentage change = [(650 - 520) / 520] x 100
Subtract the new number by the original number
650 - 520 = 130
130 ÷ 520 = 0.25
0.25 x 100 = 25%
Example