-90.04% is the change from 673 to 67
Calculation steps:
[( 67 - 673 ) ÷ 673] x 100 = -90.04%
Formula
Percentage change = [(67 - 673) / 673] x 100
Subtract the new number by the original number
67 - 673 = -606
-606 ÷ 673 = -0.9004457652303121
-0.9004457652303121 x 100 = -90.04%