51.54% is the change from 520 to 788
Calculation steps:
[( 788 - 520 ) ÷ 520] x 100 = 51.54%
Formula
Percentage change = [(788 - 520) / 520] x 100
Subtract the new number by the original number
788 - 520 = 268
268 ÷ 520 = 0.5153846153846153
0.5153846153846153 x 100 = 51.54%