Normally, stairway $5.00 per step, floor $5.00 per sqaure yard. As the carpeter itself depening the quality you like. Also, for the floor footage, you need add roughly 10% extra as you need to cut and through some carpeter.; A2 R' e- u. R
; Y9 a3 L6 P' g8 q$ T3 s8 g! D
This is just rough idea.