-39.04% is the change from 356 to 217
Calculation steps:
[( 217 - 356 ) ÷ 356] x 100 = -39.04%
Formula
Percentage change = [(217 - 356) / 356] x 100
Subtract the new number by the original number
217 - 356 = -139
-139 ÷ 356 = -0.3904494382022472
-0.3904494382022472 x 100 = -39.04%