-99.63% is the change from 268 to 1
Calculation steps:
[( 1 - 268 ) ÷ 268] x 100 = -99.63%
Formula
Percentage change = [(1 - 268) / 268] x 100
Subtract the new number by the original number
1 - 268 = -267
-267 ÷ 268 = -0.996268656716418
-0.996268656716418 x 100 = -99.63%