7800% is the change from 7 to 553
Calculation steps:
[( 553 - 7 ) ÷ 7] x 100 = 7800%
Formula
Percentage change = [(553 - 7) / 7] x 100
Subtract the new number by the original number
553 - 7 = 546
546 ÷ 7 = 78
78 x 100 = 7800%
Example