BRT CO

hello John ! The inflation rate is 3 %. how do i inflate these costs ? sales volume Y1=0.7 million, yr2= 1.6m, yr3= 2.1m, yr4 =3 m v. cost p.u.....yr1= 2.8, yr2=3, yr3=3, yr4=3.05 tot fixed costs....1m, 1.8m,,2.8m, 3.8m