-16.97% is the change from 831 to 690
Calculation steps:
[( 690 - 831 ) ÷ 831] x 100 = -16.97%
Formula
Percentage change = [(690 - 831) / 831] x 100
Subtract the new number by the original number
690 - 831 = -141
-141 ÷ 831 = -0.16967509025270758
-0.16967509025270758 x 100 = -16.97%