6600% is the change from 10 to 670
Calculation steps:
[( 670 - 10 ) ÷ 10] x 100 = 6600%
Formula
Percentage change = [(670 - 10) / 10] x 100
Subtract the new number by the original number
670 - 10 = 660
660 ÷ 10 = 66
66 x 100 = 6600%
Example