26.12% is the change from 245 to 309
Calculation steps:
[( 309 - 245 ) ÷ 245] x 100 = 26.12%
Formula
Percentage change = [(309 - 245) / 245] x 100
Subtract the new number by the original number
309 - 245 = 64
64 ÷ 245 = 0.2612244897959184
0.2612244897959184 x 100 = 26.12%