-7.32% is the change from 246 to 228
Calculation steps:
[( 228 - 246 ) ÷ 246] x 100 = -7.32%
Formula
Percentage change = [(228 - 246) / 246] x 100
Subtract the new number by the original number
228 - 246 = -18
-18 ÷ 246 = -0.07317073170731707
-0.07317073170731707 x 100 = -7.32%