-4.07% is the change from 270 to 259
Calculation steps:
[( 259 - 270 ) ÷ 270] x 100 = -4.07%
Formula
Percentage change = [(259 - 270) / 270] x 100
Subtract the new number by the original number
259 - 270 = -11
-11 ÷ 270 = -0.040740740740740744
-0.040740740740740744 x 100 = -4.07%