4350% is the change from 20 to 890
Calculation steps:
[( 890 - 20 ) ÷ 20] x 100 = 4350%
Formula
Percentage change = [(890 - 20) / 20] x 100
Subtract the new number by the original number
890 - 20 = 870
870 ÷ 20 = 43.5
43.5 x 100 = 4350%
Example