-89.55% is the change from 268 to 28
Calculation steps:
[( 28 - 268 ) ÷ 268] x 100 = -89.55%
Formula
Percentage change = [(28 - 268) / 268] x 100
Subtract the new number by the original number
28 - 268 = -240
-240 ÷ 268 = -0.8955223880597015
-0.8955223880597015 x 100 = -89.55%