135.17% is the change from 344 to 809
Calculation steps:
[( 809 - 344 ) ÷ 344] x 100 = 135.17%
Formula
Percentage change = [(809 - 344) / 344] x 100
Subtract the new number by the original number
809 - 344 = 465
465 ÷ 344 = 1.3517441860465116
1.3517441860465116 x 100 = 135.17%