6.78% is the change from 295 to 315
Calculation steps:
[( 315 - 295 ) ÷ 295] x 100 = 6.78%
Formula
Percentage change = [(315 - 295) / 295] x 100
Subtract the new number by the original number
315 - 295 = 20
20 ÷ 295 = 0.06779661016949153
0.06779661016949153 x 100 = 6.78%