-91.98% is the change from 673 to 54
Calculation steps:
[( 54 - 673 ) ÷ 673] x 100 = -91.98%
Formula
Percentage change = [(54 - 673) / 673] x 100
Subtract the new number by the original number
54 - 673 = -619
-619 ÷ 673 = -0.9197622585438335
-0.9197622585438335 x 100 = -91.98%