27.58% is the change from 660 to 842
Calculation steps:
[( 842 - 660 ) ÷ 660] x 100 = 27.58%
Formula
Percentage change = [(842 - 660) / 660] x 100
Subtract the new number by the original number
842 - 660 = 182
182 ÷ 660 = 0.27575757575757576
0.27575757575757576 x 100 = 27.58%