-41.94% is the change from 391 to 227
Calculation steps:
[( 227 - 391 ) ÷ 391] x 100 = -41.94%
Formula
Percentage change = [(227 - 391) / 391] x 100
Subtract the new number by the original number
227 - 391 = -164
-164 ÷ 391 = -0.4194373401534527
-0.4194373401534527 x 100 = -41.94%