-13.48% is the change from 267 to 231
Calculation steps:
[( 231 - 267 ) ÷ 267] x 100 = -13.48%
Formula
Percentage change = [(231 - 267) / 267] x 100
Subtract the new number by the original number
231 - 267 = -36
-36 ÷ 267 = -0.1348314606741573
-0.1348314606741573 x 100 = -13.48%