March 31, 2017

December 31, 2016

Costs incurred on uncompleted contracts

$

2,042,082

$

2,193,406

Estimated earnings

946,868

629,086

Costs and estimated earnings earned on uncompleted contracts

2,988,950

2,822,492

Billings to date

2,616,487

2,558,700

Costs and estimated earnings in excess of billings on uncompleted contracts

372,463

263,792

Costs and earnings in excess of billings on completed contracts

396,515

255,426

$

(24,052

)

$

8,366

Costs in excess of billings

$

80,826

$

91,904

Billings in excess of cost

(104,718

)

(83,538

)

$

(24,052

)

$

8,366