-87.61% is the change from 831 to 103
Calculation steps:
[( 103 - 831 ) ÷ 831] x 100 = -87.61%
Formula
Percentage change = [(103 - 831) / 831] x 100
Subtract the new number by the original number
103 - 831 = -728
-728 ÷ 831 = -0.8760529482551144
-0.8760529482551144 x 100 = -87.61%