57.09% is the change from 522 to 820
Calculation steps:
[( 820 - 522 ) ÷ 522] x 100 = 57.09%
Formula
Percentage change = [(820 - 522) / 522] x 100
Subtract the new number by the original number
820 - 522 = 298
298 ÷ 522 = 0.5708812260536399
0.5708812260536399 x 100 = 57.09%