-79.56% is the change from 137 to 28
Calculation steps:
[( 28 - 137 ) ÷ 137] x 100 = -79.56%
Formula
Percentage change = [(28 - 137) / 137] x 100
Subtract the new number by the original number
28 - 137 = -109
-109 ÷ 137 = -0.7956204379562044
-0.7956204379562044 x 100 = -79.56%