-7.62% is the change from 538 to 497
Calculation steps:
[( 497 - 538 ) ÷ 538] x 100 = -7.62%
Formula
Percentage change = [(497 - 538) / 538] x 100
Subtract the new number by the original number
497 - 538 = -41
-41 ÷ 538 = -0.0762081784386617
-0.0762081784386617 x 100 = -7.62%