-82.75% is the change from 313 to 54
Calculation steps:
[( 54 - 313 ) ÷ 313] x 100 = -82.75%
Formula
Percentage change = [(54 - 313) / 313] x 100
Subtract the new number by the original number
54 - 313 = -259
-259 ÷ 313 = -0.8274760383386581
-0.8274760383386581 x 100 = -82.75%