-64.49% is the change from 673 to 239
Calculation steps:
[( 239 - 673 ) ÷ 673] x 100 = -64.49%
Formula
Percentage change = [(239 - 673) / 673] x 100
Subtract the new number by the original number
239 - 673 = -434
-434 ÷ 673 = -0.6448736998514116
-0.6448736998514116 x 100 = -64.49%