-15.75% is the change from 800 to 674
Calculation steps:
[( 674 - 800 ) ÷ 800] x 100 = -15.75%
Formula
Percentage change = [(674 - 800) / 800] x 100
Subtract the new number by the original number
674 - 800 = -126
-126 ÷ 800 = -0.1575
-0.1575 x 100 = -15.75%