-90.89% is the change from 538 to 49
Calculation steps:
[( 49 - 538 ) ÷ 538] x 100 = -90.89%
Formula
Percentage change = [(49 - 538) / 538] x 100
Subtract the new number by the original number
49 - 538 = -489
-489 ÷ 538 = -0.9089219330855018
-0.9089219330855018 x 100 = -90.89%