7214.29% is the change from 7 to 512
Calculation steps:
[( 512 - 7 ) ÷ 7] x 100 = 7214.29%
Formula
Percentage change = [(512 - 7) / 7] x 100
Subtract the new number by the original number
512 - 7 = 505
505 ÷ 7 = 72.14285714285714
72.14285714285714 x 100 = 7214.29%