-79.14% is the change from 187 to 39
Calculation steps:
[( 39 - 187 ) ÷ 187] x 100 = -79.14%
Formula
Percentage change = [(39 - 187) / 187] x 100
Subtract the new number by the original number
39 - 187 = -148
-148 ÷ 187 = -0.7914438502673797
-0.7914438502673797 x 100 = -79.14%