18.87% is the change from 265 to 315
Calculation steps:
[( 315 - 265 ) ÷ 265] x 100 = 18.87%
Formula
Percentage change = [(315 - 265) / 265] x 100
Subtract the new number by the original number
315 - 265 = 50
50 ÷ 265 = 0.18867924528301888
0.18867924528301888 x 100 = 18.87%