-42.05% is the change from 371 to 215
Calculation steps:
[( 215 - 371 ) ÷ 371] x 100 = -42.05%
Formula
Percentage change = [(215 - 371) / 371] x 100
Subtract the new number by the original number
215 - 371 = -156
-156 ÷ 371 = -0.42048517520215634
-0.42048517520215634 x 100 = -42.05%