-87.31% is the change from 268 to 34
Calculation steps:
[( 34 - 268 ) ÷ 268] x 100 = -87.31%
Formula
Percentage change = [(34 - 268) / 268] x 100
Subtract the new number by the original number
34 - 268 = -234
-234 ÷ 268 = -0.8731343283582089
-0.8731343283582089 x 100 = -87.31%