-49.77% is the change from 217 to 109
Calculation steps:
[( 109 - 217 ) ÷ 217] x 100 = -49.77%
Formula
Percentage change = [(109 - 217) / 217] x 100
Subtract the new number by the original number
109 - 217 = -108
-108 ÷ 217 = -0.4976958525345622
-0.4976958525345622 x 100 = -49.77%