6360% is the change from 10 to 646
Calculation steps:
[( 646 - 10 ) ÷ 10] x 100 = 6360%
Formula
Percentage change = [(646 - 10) / 10] x 100
Subtract the new number by the original number
646 - 10 = 636
636 ÷ 10 = 63.6
63.6 x 100 = 6360%
Example