49.39% is the change from 164 to 245
Calculation steps:
[( 245 - 164 ) ÷ 164] x 100 = 49.39%
Formula
Percentage change = [(245 - 164) / 164] x 100
Subtract the new number by the original number
245 - 164 = 81
81 ÷ 164 = 0.49390243902439024
0.49390243902439024 x 100 = 49.39%