-8.33% is the change from 60 to 55
Calculation steps:
[( 55 - 60 ) ÷ 60] x 100 = -8.33%
Formula
Percentage change = [(55 - 60) / 60] x 100
Subtract the new number by the original number
55 - 60 = -5
-5 ÷ 60 = -0.08333333333333333
-0.08333333333333333 x 100 = -8.33%