10.54% is the change from 579 to 640
Calculation steps:
[( 640 - 579 ) ÷ 579] x 100 = 10.54%
Formula
Percentage change = [(640 - 579) / 579] x 100
Subtract the new number by the original number
640 - 579 = 61
61 ÷ 579 = 0.10535405872193437
0.10535405872193437 x 100 = 10.54%