Normally, stairway $5.00 per step, floor $5.00 per sqaure yard. As the carpeter itself depening the quality you like. Also, for the floor footage, you need add roughly 10% extra as you need to cut and through some carpeter.( C' B0 J* F: ]) U' C; q5 A
$ P' r# P2 _- v$ a
This is just rough idea.