-18.56% is the change from 997 to 812
Calculation steps:
[( 812 - 997 ) ÷ 997] x 100 = -18.56%
Formula
Percentage change = [(812 - 997) / 997] x 100
Subtract the new number by the original number
812 - 997 = -185
-185 ÷ 997 = -0.1855566700100301
-0.1855566700100301 x 100 = -18.56%