65.99% is the change from 344 to 571
Calculation steps:
[( 571 - 344 ) ÷ 344] x 100 = 65.99%
Formula
Percentage change = [(571 - 344) / 344] x 100
Subtract the new number by the original number
571 - 344 = 227
227 ÷ 344 = 0.6598837209302325
0.6598837209302325 x 100 = 65.99%