30.22% is the change from 503 to 655
Calculation steps:
[( 655 - 503 ) ÷ 503] x 100 = 30.22%
Formula
Percentage change = [(655 - 503) / 503] x 100
Subtract the new number by the original number
655 - 503 = 152
152 ÷ 503 = 0.30218687872763417
0.30218687872763417 x 100 = 30.22%