475% is the change from 4 to 23
Calculation steps:
[( 23 - 4 ) ÷ 4] x 100 = 475%
Formula
Percentage change = [(23 - 4) / 4] x 100
Subtract the new number by the original number
23 - 4 = 19
19 ÷ 4 = 4.75
4.75 x 100 = 475%
Example