55.42% is the change from 397 to 617
Calculation steps:
[( 617 - 397 ) ÷ 397] x 100 = 55.42%
Formula
Percentage change = [(617 - 397) / 397] x 100
Subtract the new number by the original number
617 - 397 = 220
220 ÷ 397 = 0.5541561712846348
0.5541561712846348 x 100 = 55.42%