-38.29% is the change from 350 to 216
Calculation steps:
[( 216 - 350 ) ÷ 350] x 100 = -38.29%
Formula
Percentage change = [(216 - 350) / 350] x 100
Subtract the new number by the original number
216 - 350 = -134
-134 ÷ 350 = -0.38285714285714284
-0.38285714285714284 x 100 = -38.29%