-79.88% is the change from 979 to 197
Calculation steps:
[( 197 - 979 ) ÷ 979] x 100 = -79.88%
Formula
Percentage change = [(197 - 979) / 979] x 100
Subtract the new number by the original number
197 - 979 = -782
-782 ÷ 979 = -0.7987742594484167
-0.7987742594484167 x 100 = -79.88%