In business now for about 6 months,completed 4 residential jobs and 7 small commercial jobs material costs for residential have been between 45 & 50% of total job price per job ,commercial projects have been almost bang on 20% for every job.I have had positive profit results on every job so far. Realising this 30% difference I am now adding 30% to all my residential estimates. I have not received one call back on 4 estimates for residential since raising the bar. I am holding out on this new pricing strategy.