-47.85% is the change from 209 to 109
Calculation steps:
[( 109 - 209 ) ÷ 209] x 100 = -47.85%
Formula
Percentage change = [(109 - 209) / 209] x 100
Subtract the new number by the original number
109 - 209 = -100
-100 ÷ 209 = -0.4784688995215311
-0.4784688995215311 x 100 = -47.85%