-88.91% is the change from 487 to 54
Calculation steps:
[( 54 - 487 ) ÷ 487] x 100 = -88.91%
Formula
Percentage change = [(54 - 487) / 487] x 100
Subtract the new number by the original number
54 - 487 = -433
-433 ÷ 487 = -0.8891170431211499
-0.8891170431211499 x 100 = -88.91%