18. Determine over and underbilling's for a company with the following information: - Job Number: 311 Job Name: Smith Remodel Current Contract Amount: \$22,530 Total Estimated Cost at Completion: \$17,264 Actual Costs to Date: \$16,538 Total Billed: $21,000 - Job Number: 316 Job Name: Redd Remodel Current Contract Amount: \$35,624 Total Estimated Cost at Completion: \$28,221 Actual Costs to Date: \$22,345 Total Billed: $28,500