800% is the change from 7 to 63
Calculation steps:
[( 63 - 7 ) ÷ 7] x 100 = 800%
Formula
Percentage change = [(63 - 7) / 7] x 100
Subtract the new number by the original number
63 - 7 = 56
56 ÷ 7 = 8
8 x 100 = 800%
Example