464% is the change from 75 to 423
Calculation steps:
[( 423 - 75 ) ÷ 75] x 100 = 464%
Formula
Percentage change = [(423 - 75) / 75] x 100
Subtract the new number by the original number
423 - 75 = 348
348 ÷ 75 = 4.64
4.64 x 100 = 464%
Example