-15.06% is the change from 538 to 457
Calculation steps:
[( 457 - 538 ) ÷ 538] x 100 = -15.06%
Formula
Percentage change = [(457 - 538) / 538] x 100
Subtract the new number by the original number
457 - 538 = -81
-81 ÷ 538 = -0.15055762081784388
-0.15055762081784388 x 100 = -15.06%