-66.79% is the change from 268 to 89
Calculation steps:
[( 89 - 268 ) ÷ 268] x 100 = -66.79%
Formula
Percentage change = [(89 - 268) / 268] x 100
Subtract the new number by the original number
89 - 268 = -179
-179 ÷ 268 = -0.667910447761194
-0.667910447761194 x 100 = -66.79%