-32.34% is the change from 337 to 228
Calculation steps:
[( 228 - 337 ) ÷ 337] x 100 = -32.34%
Formula
Percentage change = [(228 - 337) / 337] x 100
Subtract the new number by the original number
228 - 337 = -109
-109 ÷ 337 = -0.32344213649851633
-0.32344213649851633 x 100 = -32.34%