-80.24% is the change from 997 to 197
Calculation steps:
[( 197 - 997 ) ÷ 997] x 100 = -80.24%
Formula
Percentage change = [(197 - 997) / 997] x 100
Subtract the new number by the original number
197 - 997 = -800
-800 ÷ 997 = -0.802407221664995
-0.802407221664995 x 100 = -80.24%