-91.69% is the change from 662 to 55
Calculation steps:
[( 55 - 662 ) ÷ 662] x 100 = -91.69%
Formula
Percentage change = [(55 - 662) / 662] x 100
Subtract the new number by the original number
55 - 662 = -607
-607 ÷ 662 = -0.9169184290030211
-0.9169184290030211 x 100 = -91.69%