39.72% is the change from 360 to 503
Calculation steps:
[( 503 - 360 ) ÷ 360] x 100 = 39.72%
Formula
Percentage change = [(503 - 360) / 360] x 100
Subtract the new number by the original number
503 - 360 = 143
143 ÷ 360 = 0.3972222222222222
0.3972222222222222 x 100 = 39.72%