-52.6% is the change from 673 to 319
Calculation steps:
[( 319 - 673 ) ÷ 673] x 100 = -52.6%
Formula
Percentage change = [(319 - 673) / 673] x 100
Subtract the new number by the original number
319 - 673 = -354
-354 ÷ 673 = -0.5260029717682021
-0.5260029717682021 x 100 = -52.6%