-92.13% is the change from 267 to 21
Calculation steps:
[( 21 - 267 ) ÷ 267] x 100 = -92.13%
Formula
Percentage change = [(21 - 267) / 267] x 100
Subtract the new number by the original number
21 - 267 = -246
-246 ÷ 267 = -0.9213483146067416
-0.9213483146067416 x 100 = -92.13%