-98.47% is the change from 983 to 15
Calculation steps:
[( 15 - 983 ) ÷ 983] x 100 = -98.47%
Formula
Percentage change = [(15 - 983) / 983] x 100
Subtract the new number by the original number
15 - 983 = -968
-968 ÷ 983 = -0.9847405900305188
-0.9847405900305188 x 100 = -98.47%