56.21% is the change from 523 to 817
Calculation steps:
[( 817 - 523 ) ÷ 523] x 100 = 56.21%
Formula
Percentage change = [(817 - 523) / 523] x 100
Subtract the new number by the original number
817 - 523 = 294
294 ÷ 523 = 0.5621414913957935
0.5621414913957935 x 100 = 56.21%