-34.23% is the change from 260 to 171
Calculation steps:
[( 171 - 260 ) ÷ 260] x 100 = -34.23%
Formula
Percentage change = [(171 - 260) / 260] x 100
Subtract the new number by the original number
171 - 260 = -89
-89 ÷ 260 = -0.3423076923076923
-0.3423076923076923 x 100 = -34.23%