7.95% is the change from 503 to 543
Calculation steps:
[( 543 - 503 ) ÷ 503] x 100 = 7.95%
Formula
Percentage change = [(543 - 503) / 503] x 100
Subtract the new number by the original number
543 - 503 = 40
40 ÷ 503 = 0.07952286282306163
0.07952286282306163 x 100 = 7.95%