-70.15% is the change from 268 to 80
Calculation steps:
[( 80 - 268 ) ÷ 268] x 100 = -70.15%
Formula
Percentage change = [(80 - 268) / 268] x 100
Subtract the new number by the original number
80 - 268 = -188
-188 ÷ 268 = -0.7014925373134329
-0.7014925373134329 x 100 = -70.15%