782.46% is the change from 57 to 503
Calculation steps:
[( 503 - 57 ) ÷ 57] x 100 = 782.46%
Formula
Percentage change = [(503 - 57) / 57] x 100
Subtract the new number by the original number
503 - 57 = 446
446 ÷ 57 = 7.824561403508772
7.824561403508772 x 100 = 782.46%