34.39% is the change from 503 to 676
Calculation steps:
[( 676 - 503 ) ÷ 503] x 100 = 34.39%
Formula
Percentage change = [(676 - 503) / 503] x 100
Subtract the new number by the original number
676 - 503 = 173
173 ÷ 503 = 0.34393638170974156
0.34393638170974156 x 100 = 34.39%