4.57% is the change from 503 to 526
Calculation steps:
[( 526 - 503 ) ÷ 503] x 100 = 4.57%
Formula
Percentage change = [(526 - 503) / 503] x 100
Subtract the new number by the original number
526 - 503 = 23
23 ÷ 503 = 0.04572564612326044
0.04572564612326044 x 100 = 4.57%