-52.75% is the change from 673 to 318
Calculation steps:
[( 318 - 673 ) ÷ 673] x 100 = -52.75%
Formula
Percentage change = [(318 - 673) / 673] x 100
Subtract the new number by the original number
318 - 673 = -355
-355 ÷ 673 = -0.5274888558692422
-0.5274888558692422 x 100 = -52.75%