-99.18% is the change from 980 to 8
Calculation steps:
[( 8 - 980 ) ÷ 980] x 100 = -99.18%
Formula
Percentage change = [(8 - 980) / 980] x 100
Subtract the new number by the original number
8 - 980 = -972
-972 ÷ 980 = -0.9918367346938776
-0.9918367346938776 x 100 = -99.18%