-99.63% is the change from 267 to 1
Calculation steps:
[( 1 - 267 ) ÷ 267] x 100 = -99.63%
Formula
Percentage change = [(1 - 267) / 267] x 100
Subtract the new number by the original number
1 - 267 = -266
-266 ÷ 267 = -0.9962546816479401
-0.9962546816479401 x 100 = -99.63%