7.36% is the change from 503 to 540
Calculation steps:
[( 540 - 503 ) ÷ 503] x 100 = 7.36%
Formula
Percentage change = [(540 - 503) / 503] x 100
Subtract the new number by the original number
540 - 503 = 37
37 ÷ 503 = 0.073558648111332
0.073558648111332 x 100 = 7.36%