302% is the change from 100 to 402
Calculation steps:
[( 402 - 100 ) ÷ 100] x 100 = 302%
Formula
Percentage change = [(402 - 100) / 100] x 100
Subtract the new number by the original number
402 - 100 = 302
302 ÷ 100 = 3.02
3.02 x 100 = 302%
Example