45.9% is the change from 305 to 445
Calculation steps:
[( 445 - 305 ) ÷ 305] x 100 = 45.9%
Formula
Percentage change = [(445 - 305) / 305] x 100
Subtract the new number by the original number
445 - 305 = 140
140 ÷ 305 = 0.45901639344262296
0.45901639344262296 x 100 = 45.9%