-9.06% is the change from 298 to 271
Calculation steps:
[( 271 - 298 ) ÷ 298] x 100 = -9.06%
Formula
Percentage change = [(271 - 298) / 298] x 100
Subtract the new number by the original number
271 - 298 = -27
-27 ÷ 298 = -0.09060402684563758
-0.09060402684563758 x 100 = -9.06%