-18.1% is the change from 823 to 674
Calculation steps:
[( 674 - 823 ) ÷ 823] x 100 = -18.1%
Formula
Percentage change = [(674 - 823) / 823] x 100
Subtract the new number by the original number
674 - 823 = -149
-149 ÷ 823 = -0.181044957472661
-0.181044957472661 x 100 = -18.1%