6.96% is the change from 503 to 538
Calculation steps:
[( 538 - 503 ) ÷ 503] x 100 = 6.96%
Formula
Percentage change = [(538 - 503) / 503] x 100
Subtract the new number by the original number
538 - 503 = 35
35 ÷ 503 = 0.06958250497017893
0.06958250497017893 x 100 = 6.96%