-35.29% is the change from 323 to 209
Calculation steps:
[( 209 - 323 ) ÷ 323] x 100 = -35.29%
Formula
Percentage change = [(209 - 323) / 323] x 100
Subtract the new number by the original number
209 - 323 = -114
-114 ÷ 323 = -0.35294117647058826
-0.35294117647058826 x 100 = -35.29%