33.6% is the change from 503 to 672
Calculation steps:
[( 672 - 503 ) ÷ 503] x 100 = 33.6%
Formula
Percentage change = [(672 - 503) / 503] x 100
Subtract the new number by the original number
672 - 503 = 169
169 ÷ 503 = 0.3359840954274354
0.3359840954274354 x 100 = 33.6%