42.11% is the change from 577 to 820
Calculation steps:
[( 820 - 577 ) ÷ 577] x 100 = 42.11%
Formula
Percentage change = [(820 - 577) / 577] x 100
Subtract the new number by the original number
820 - 577 = 243
243 ÷ 577 = 0.42114384748700173
0.42114384748700173 x 100 = 42.11%