14.7% is the change from 558 to 640
Calculation steps:
[( 640 - 558 ) ÷ 558] x 100 = 14.7%
Formula
Percentage change = [(640 - 558) / 558] x 100
Subtract the new number by the original number
640 - 558 = 82
82 ÷ 558 = 0.14695340501792115
0.14695340501792115 x 100 = 14.7%