25.25% is the change from 503 to 630
Calculation steps:
[( 630 - 503 ) ÷ 503] x 100 = 25.25%
Formula
Percentage change = [(630 - 503) / 503] x 100
Subtract the new number by the original number
630 - 503 = 127
127 ÷ 503 = 0.2524850894632207
0.2524850894632207 x 100 = 25.25%