5.79% is the change from 397 to 420
Calculation steps:
[( 420 - 397 ) ÷ 397] x 100 = 5.79%
Formula
Percentage change = [(420 - 397) / 397] x 100
Subtract the new number by the original number
420 - 397 = 23
23 ÷ 397 = 0.05793450881612091
0.05793450881612091 x 100 = 5.79%