-55.05% is the change from 109 to 49
Calculation steps:
[( 49 - 109 ) ÷ 109] x 100 = -55.05%
Formula
Percentage change = [(49 - 109) / 109] x 100
Subtract the new number by the original number
49 - 109 = -60
-60 ÷ 109 = -0.5504587155963303
-0.5504587155963303 x 100 = -55.05%