17.15% is the change from 548 to 642
Calculation steps:
[( 642 - 548 ) ÷ 548] x 100 = 17.15%
Formula
Percentage change = [(642 - 548) / 548] x 100
Subtract the new number by the original number
642 - 548 = 94
94 ÷ 548 = 0.17153284671532848
0.17153284671532848 x 100 = 17.15%