-42.2% is the change from 109 to 63
Calculation steps:
[( 63 - 109 ) ÷ 109] x 100 = -42.2%
Formula
Percentage change = [(63 - 109) / 109] x 100
Subtract the new number by the original number
63 - 109 = -46
-46 ÷ 109 = -0.42201834862385323
-0.42201834862385323 x 100 = -42.2%