64.53% is the change from 344 to 566
Calculation steps:
[( 566 - 344 ) ÷ 344] x 100 = 64.53%
Formula
Percentage change = [(566 - 344) / 344] x 100
Subtract the new number by the original number
566 - 344 = 222
222 ÷ 344 = 0.6453488372093024
0.6453488372093024 x 100 = 64.53%