-8.52% is the change from 270 to 247
Calculation steps:
[( 247 - 270 ) ÷ 270] x 100 = -8.52%
Formula
Percentage change = [(247 - 270) / 270] x 100
Subtract the new number by the original number
247 - 270 = -23
-23 ÷ 270 = -0.08518518518518518
-0.08518518518518518 x 100 = -8.52%