-85% is the change from 60 to 9
Calculation steps:
[( 9 - 60 ) ÷ 60] x 100 = -85%
Formula
Percentage change = [(9 - 60) / 60] x 100
Subtract the new number by the original number
9 - 60 = -51
-51 ÷ 60 = -0.85
-0.85 x 100 = -85%
Example