-68.71% is the change from 831 to 260
Calculation steps:
[( 260 - 831 ) ÷ 831] x 100 = -68.71%
Formula
Percentage change = [(260 - 831) / 831] x 100
Subtract the new number by the original number
260 - 831 = -571
-571 ÷ 831 = -0.6871239470517448
-0.6871239470517448 x 100 = -68.71%