6800% is the change from 10 to 690
Calculation steps:
[( 690 - 10 ) ÷ 10] x 100 = 6800%
Formula
Percentage change = [(690 - 10) / 10] x 100
Subtract the new number by the original number
690 - 10 = 680
680 ÷ 10 = 68
68 x 100 = 6800%
Example