67.73% is the change from 344 to 577
Calculation steps:
[( 577 - 344 ) ÷ 344] x 100 = 67.73%
Formula
Percentage change = [(577 - 344) / 344] x 100
Subtract the new number by the original number
577 - 344 = 233
233 ÷ 344 = 0.6773255813953488
0.6773255813953488 x 100 = 67.73%