-83.73% is the change from 209 to 34
Calculation steps:
[( 34 - 209 ) ÷ 209] x 100 = -83.73%
Formula
Percentage change = [(34 - 209) / 209] x 100
Subtract the new number by the original number
34 - 209 = -175
-175 ÷ 209 = -0.8373205741626795
-0.8373205741626795 x 100 = -83.73%