-13.72% is the change from 831 to 717
Calculation steps:
[( 717 - 831 ) ÷ 831] x 100 = -13.72%
Formula
Percentage change = [(717 - 831) / 831] x 100
Subtract the new number by the original number
717 - 831 = -114
-114 ÷ 831 = -0.1371841155234657
-0.1371841155234657 x 100 = -13.72%