-9.11% is the change from 538 to 489
Calculation steps:
[( 489 - 538 ) ÷ 538] x 100 = -9.11%
Formula
Percentage change = [(489 - 538) / 538] x 100
Subtract the new number by the original number
489 - 538 = -49
-49 ÷ 538 = -0.09107806691449814
-0.09107806691449814 x 100 = -9.11%