-42.34% is the change from 137 to 79
Calculation steps:
[( 79 - 137 ) ÷ 137] x 100 = -42.34%
Formula
Percentage change = [(79 - 137) / 137] x 100
Subtract the new number by the original number
79 - 137 = -58
-58 ÷ 137 = -0.4233576642335766
-0.4233576642335766 x 100 = -42.34%