-83.8% is the change from 537 to 87
Calculation steps:
[( 87 - 537 ) ÷ 537] x 100 = -83.8%
Formula
Percentage change = [(87 - 537) / 537] x 100
Subtract the new number by the original number
87 - 537 = -450
-450 ÷ 537 = -0.8379888268156425
-0.8379888268156425 x 100 = -83.8%