-5.42% is the change from 831 to 786
Calculation steps:
[( 786 - 831 ) ÷ 831] x 100 = -5.42%
Formula
Percentage change = [(786 - 831) / 831] x 100
Subtract the new number by the original number
786 - 831 = -45
-45 ÷ 831 = -0.05415162454873646
-0.05415162454873646 x 100 = -5.42%