-79.04% is the change from 997 to 209
Calculation steps:
[( 209 - 997 ) ÷ 997] x 100 = -79.04%
Formula
Percentage change = [(209 - 997) / 997] x 100
Subtract the new number by the original number
209 - 997 = -788
-788 ÷ 997 = -0.7903711133400201
-0.7903711133400201 x 100 = -79.04%