-39.61% is the change from 356 to 215
Calculation steps:
[( 215 - 356 ) ÷ 356] x 100 = -39.61%
Formula
Percentage change = [(215 - 356) / 356] x 100
Subtract the new number by the original number
215 - 356 = -141
-141 ÷ 356 = -0.3960674157303371
-0.3960674157303371 x 100 = -39.61%