111.64% is the change from 146 to 309
Calculation steps:
[( 309 - 146 ) ÷ 146] x 100 = 111.64%
Formula
Percentage change = [(309 - 146) / 146] x 100
Subtract the new number by the original number
309 - 146 = 163
163 ÷ 146 = 1.1164383561643836
1.1164383561643836 x 100 = 111.64%