-15.4% is the change from 831 to 703
Calculation steps:
[( 703 - 831 ) ÷ 831] x 100 = -15.4%
Formula
Percentage change = [(703 - 831) / 831] x 100
Subtract the new number by the original number
703 - 831 = -128
-128 ÷ 831 = -0.15403128760529483
-0.15403128760529483 x 100 = -15.4%