423.96% is the change from 96 to 503
Calculation steps:
[( 503 - 96 ) ÷ 96] x 100 = 423.96%
Formula
Percentage change = [(503 - 96) / 96] x 100
Subtract the new number by the original number
503 - 96 = 407
407 ÷ 96 = 4.239583333333333
4.239583333333333 x 100 = 423.96%