56.32% is the change from 522 to 816
Calculation steps:
[( 816 - 522 ) ÷ 522] x 100 = 56.32%
Formula
Percentage change = [(816 - 522) / 522] x 100
Subtract the new number by the original number
816 - 522 = 294
294 ÷ 522 = 0.5632183908045977
0.5632183908045977 x 100 = 56.32%