-39.11% is the change from 179 to 109
Calculation steps:
[( 109 - 179 ) ÷ 179] x 100 = -39.11%
Formula
Percentage change = [(109 - 179) / 179] x 100
Subtract the new number by the original number
109 - 179 = -70
-70 ÷ 179 = -0.39106145251396646
-0.39106145251396646 x 100 = -39.11%