-81.72% is the change from 487 to 89
Calculation steps:
[( 89 - 487 ) ÷ 487] x 100 = -81.72%
Formula
Percentage change = [(89 - 487) / 487] x 100
Subtract the new number by the original number
89 - 487 = -398
-398 ÷ 487 = -0.8172484599589322
-0.8172484599589322 x 100 = -81.72%