6610% is the change from 10 to 671
Calculation steps:
[( 671 - 10 ) ÷ 10] x 100 = 6610%
Formula
Percentage change = [(671 - 10) / 10] x 100
Subtract the new number by the original number
671 - 10 = 661
661 ÷ 10 = 66.1
66.1 x 100 = 6610%
Example