-36.2% is the change from 337 to 215
Calculation steps:
[( 215 - 337 ) ÷ 337] x 100 = -36.2%
Formula
Percentage change = [(215 - 337) / 337] x 100
Subtract the new number by the original number
215 - 337 = -122
-122 ÷ 337 = -0.3620178041543027
-0.3620178041543027 x 100 = -36.2%