42.9% is the change from 352 to 503
Calculation steps:
[( 503 - 352 ) ÷ 352] x 100 = 42.9%
Formula
Percentage change = [(503 - 352) / 352] x 100
Subtract the new number by the original number
503 - 352 = 151
151 ÷ 352 = 0.4289772727272727
0.4289772727272727 x 100 = 42.9%