21.17% is the change from 548 to 664
Calculation steps:
[( 664 - 548 ) ÷ 548] x 100 = 21.17%
Formula
Percentage change = [(664 - 548) / 548] x 100
Subtract the new number by the original number
664 - 548 = 116
116 ÷ 548 = 0.2116788321167883
0.2116788321167883 x 100 = 21.17%