79.65% is the change from 521 to 936
Calculation steps:
[( 936 - 521 ) ÷ 521] x 100 = 79.65%
Formula
Percentage change = [(936 - 521) / 521] x 100
Subtract the new number by the original number
936 - 521 = 415
415 ÷ 521 = 0.7965451055662188
0.7965451055662188 x 100 = 79.65%