79.85% is the change from 521 to 937
Calculation steps:
[( 937 - 521 ) ÷ 521] x 100 = 79.85%
Formula
Percentage change = [(937 - 521) / 521] x 100
Subtract the new number by the original number
937 - 521 = 416
416 ÷ 521 = 0.7984644913627639
0.7984644913627639 x 100 = 79.85%