-93.61% is the change from 313 to 20
Calculation steps:
[( 20 - 313 ) ÷ 313] x 100 = -93.61%
Formula
Percentage change = [(20 - 313) / 313] x 100
Subtract the new number by the original number
20 - 313 = -293
-293 ÷ 313 = -0.9361022364217252
-0.9361022364217252 x 100 = -93.61%