-69.66% is the change from 267 to 81
Calculation steps:
[( 81 - 267 ) ÷ 267] x 100 = -69.66%
Formula
Percentage change = [(81 - 267) / 267] x 100
Subtract the new number by the original number
81 - 267 = -186
-186 ÷ 267 = -0.6966292134831461
-0.6966292134831461 x 100 = -69.66%