30.19% is the change from 265 to 345
Calculation steps:
[( 345 - 265 ) ÷ 265] x 100 = 30.19%
Formula
Percentage change = [(345 - 265) / 265] x 100
Subtract the new number by the original number
345 - 265 = 80
80 ÷ 265 = 0.3018867924528302
0.3018867924528302 x 100 = 30.19%