-97.44% is the change from 313 to 8
Calculation steps:
[( 8 - 313 ) ÷ 313] x 100 = -97.44%
Formula
Percentage change = [(8 - 313) / 313] x 100
Subtract the new number by the original number
8 - 313 = -305
-305 ÷ 313 = -0.9744408945686901
-0.9744408945686901 x 100 = -97.44%