-93.76% is the change from 673 to 42
Calculation steps:
[( 42 - 673 ) ÷ 673] x 100 = -93.76%
Formula
Percentage change = [(42 - 673) / 673] x 100
Subtract the new number by the original number
42 - 673 = -631
-631 ÷ 673 = -0.937592867756315
-0.937592867756315 x 100 = -93.76%