-8.89% is the change from 270 to 246
Calculation steps:
[( 246 - 270 ) ÷ 270] x 100 = -8.89%
Formula
Percentage change = [(246 - 270) / 270] x 100
Subtract the new number by the original number
246 - 270 = -24
-24 ÷ 270 = -0.08888888888888889
-0.08888888888888889 x 100 = -8.89%