-15.46% is the change from 983 to 831
Calculation steps:
[( 831 - 983 ) ÷ 983] x 100 = -15.46%
Formula
Percentage change = [(831 - 983) / 983] x 100
Subtract the new number by the original number
831 - 983 = -152
-152 ÷ 983 = -0.15462868769074262
-0.15462868769074262 x 100 = -15.46%