-90.88% is the change from 537 to 49
Calculation steps:
[( 49 - 537 ) ÷ 537] x 100 = -90.88%
Formula
Percentage change = [(49 - 537) / 537] x 100
Subtract the new number by the original number
49 - 537 = -488
-488 ÷ 537 = -0.9087523277467412
-0.9087523277467412 x 100 = -90.88%