10900% is the change from 6 to 660
Calculation steps:
[( 660 - 6 ) ÷ 6] x 100 = 10900%
Formula
Percentage change = [(660 - 6) / 6] x 100
Subtract the new number by the original number
660 - 6 = 654
654 ÷ 6 = 109
109 x 100 = 10900%
Example