-27.79% is the change from 673 to 486
Calculation steps:
[( 486 - 673 ) ÷ 673] x 100 = -27.79%
Formula
Percentage change = [(486 - 673) / 673] x 100
Subtract the new number by the original number
486 - 673 = -187
-187 ÷ 673 = -0.27786032689450224
-0.27786032689450224 x 100 = -27.79%