18.51% is the change from 524 to 621
Calculation steps:
[( 621 - 524 ) ÷ 524] x 100 = 18.51%
Formula
Percentage change = [(621 - 524) / 524] x 100
Subtract the new number by the original number
621 - 524 = 97
97 ÷ 524 = 0.1851145038167939
0.1851145038167939 x 100 = 18.51%