-99.04% is the change from 313 to 3
Calculation steps:
[( 3 - 313 ) ÷ 313] x 100 = -99.04%
Formula
Percentage change = [(3 - 313) / 313] x 100
Subtract the new number by the original number
3 - 313 = -310
-310 ÷ 313 = -0.9904153354632588
-0.9904153354632588 x 100 = -99.04%