35.43% is the change from 254 to 344
Calculation steps:
[( 344 - 254 ) ÷ 254] x 100 = 35.43%
Formula
Percentage change = [(344 - 254) / 254] x 100
Subtract the new number by the original number
344 - 254 = 90
90 ÷ 254 = 0.3543307086614173
0.3543307086614173 x 100 = 35.43%