4650% is the change from 20 to 950
Calculation steps:
[( 950 - 20 ) ÷ 20] x 100 = 4650%
Formula
Percentage change = [(950 - 20) / 20] x 100
Subtract the new number by the original number
950 - 20 = 930
930 ÷ 20 = 46.5
46.5 x 100 = 4650%
Example