4285.71% is the change from 7 to 307
Calculation steps:
[( 307 - 7 ) ÷ 7] x 100 = 4285.71%
Formula
Percentage change = [(307 - 7) / 7] x 100
Subtract the new number by the original number
307 - 7 = 300
300 ÷ 7 = 42.857142857142854
42.857142857142854 x 100 = 4285.71%