-8.47% is the change from 248 to 227
Calculation steps:
[( 227 - 248 ) ÷ 248] x 100 = -8.47%
Formula
Percentage change = [(227 - 248) / 248] x 100
Subtract the new number by the original number
227 - 248 = -21
-21 ÷ 248 = -0.0846774193548387
-0.0846774193548387 x 100 = -8.47%