6470% is the change from 10 to 657
Calculation steps:
[( 657 - 10 ) ÷ 10] x 100 = 6470%
Formula
Percentage change = [(657 - 10) / 10] x 100
Subtract the new number by the original number
657 - 10 = 647
647 ÷ 10 = 64.7
64.7 x 100 = 6470%
Example