-93.4% is the change from 303 to 20
Calculation steps:
[( 20 - 303 ) ÷ 303] x 100 = -93.4%
Formula
Percentage change = [(20 - 303) / 303] x 100
Subtract the new number by the original number
20 - 303 = -283
-283 ÷ 303 = -0.933993399339934
-0.933993399339934 x 100 = -93.4%