-40% is the change from 380 to 228
Calculation steps:
[( 228 - 380 ) ÷ 380] x 100 = -40%
Formula
Percentage change = [(228 - 380) / 380] x 100
Subtract the new number by the original number
228 - 380 = -152
-152 ÷ 380 = -0.4
-0.4 x 100 = -40%
Example