-17.1% is the change from 813 to 674
Calculation steps:
[( 674 - 813 ) ÷ 813] x 100 = -17.1%
Formula
Percentage change = [(674 - 813) / 813] x 100
Subtract the new number by the original number
674 - 813 = -139
-139 ÷ 813 = -0.17097170971709716
-0.17097170971709716 x 100 = -17.1%