-36.19% is the change from 268 to 171
Calculation steps:
[( 171 - 268 ) ÷ 268] x 100 = -36.19%
Formula
Percentage change = [(171 - 268) / 268] x 100
Subtract the new number by the original number
171 - 268 = -97
-97 ÷ 268 = -0.3619402985074627
-0.3619402985074627 x 100 = -36.19%