-40.46% is the change from 351 to 209
Calculation steps:
[( 209 - 351 ) ÷ 351] x 100 = -40.46%
Formula
Percentage change = [(209 - 351) / 351] x 100
Subtract the new number by the original number
209 - 351 = -142
-142 ÷ 351 = -0.4045584045584046
-0.4045584045584046 x 100 = -40.46%