-50.22% is the change from 673 to 335
Calculation steps:
[( 335 - 673 ) ÷ 673] x 100 = -50.22%
Formula
Percentage change = [(335 - 673) / 673] x 100
Subtract the new number by the original number
335 - 673 = -338
-338 ÷ 673 = -0.5022288261515602
-0.5022288261515602 x 100 = -50.22%