6290% is the change from 10 to 639
Calculation steps:
[( 639 - 10 ) ÷ 10] x 100 = 6290%
Formula
Percentage change = [(639 - 10) / 10] x 100
Subtract the new number by the original number
639 - 10 = 629
629 ÷ 10 = 62.9
62.9 x 100 = 6290%
Example