-91.84% is the change from 662 to 54
Calculation steps:
[( 54 - 662 ) ÷ 662] x 100 = -91.84%
Formula
Percentage change = [(54 - 662) / 662] x 100
Subtract the new number by the original number
54 - 662 = -608
-608 ÷ 662 = -0.918429003021148
-0.918429003021148 x 100 = -91.84%