Answer: $2197570
Explanation:
The cost estimate is prepared below:
Base cost = $101.15 × 18525 = $1873804
Add: Site work cost = $180000
Total = $1,873,804 + $180,000 = $2053804
Add: Design fees = 7% × $2053804 = 0.07 × $2053804 = $143766
Estimated cost = $2053804 + $143766 = $2197570
The range or percentage of this cost will be +50%.