-91.86% is the change from 983 to 80
Calculation steps:
[( 80 - 983 ) ÷ 983] x 100 = -91.86%
Formula
Percentage change = [(80 - 983) / 983] x 100
Subtract the new number by the original number
80 - 983 = -903
-903 ÷ 983 = -0.9186164801627671
-0.9186164801627671 x 100 = -91.86%