43.93% is the change from 305 to 439
Calculation steps:
[( 439 - 305 ) ÷ 305] x 100 = 43.93%
Formula
Percentage change = [(439 - 305) / 305] x 100
Subtract the new number by the original number
439 - 305 = 134
134 ÷ 305 = 0.43934426229508194
0.43934426229508194 x 100 = 43.93%