-66.33% is the change from 983 to 331
Calculation steps:
[( 331 - 983 ) ÷ 983] x 100 = -66.33%
Formula
Percentage change = [(331 - 983) / 983] x 100
Subtract the new number by the original number
331 - 983 = -652
-652 ÷ 983 = -0.6632756866734486
-0.6632756866734486 x 100 = -66.33%