4300% is the change from 7 to 308
Calculation steps:
[( 308 - 7 ) ÷ 7] x 100 = 4300%
Formula
Percentage change = [(308 - 7) / 7] x 100
Subtract the new number by the original number
308 - 7 = 301
301 ÷ 7 = 43
43 x 100 = 4300%
Example