8771.43% is the change from 7 to 621
Calculation steps:
[( 621 - 7 ) ÷ 7] x 100 = 8771.43%
Formula
Percentage change = [(621 - 7) / 7] x 100
Subtract the new number by the original number
621 - 7 = 614
614 ÷ 7 = 87.71428571428571
87.71428571428571 x 100 = 8771.43%