-39.71% is the change from 350 to 211
Calculation steps:
[( 211 - 350 ) ÷ 350] x 100 = -39.71%
Formula
Percentage change = [(211 - 350) / 350] x 100
Subtract the new number by the original number
211 - 350 = -139
-139 ÷ 350 = -0.39714285714285713
-0.39714285714285713 x 100 = -39.71%