What is the WACC for Diamond Construction?

Balance Sheets for Diamond Construction Company 12/31/2014 12/31/201512/31/2016 12/31/2017 11,853 18,525 589,773 1,345,885 1,399,7201,455,709 1,513,938 1,864,1521,972,567 12,059,303 2,134,089 300,000 968,000 1,064,800 3,114,152 3,252,567 3,377,303 3,498,889 7,981 14,648 550,218 11,447 16,918 575,229 Cash 4,335 13,500 500,432 Marketable Securities A/R Inventories Total C.A. IP (net of amort) FA (net of depr Total Assets 450,000 800,000 400,000 880,000 350,000 A/P 300,557 501,233 200,445 1,002,235 368,195 304,499 208,363 881,057 1,500,000 1,450,000 1,400,000 1,350,000 300,000 967,832 924,6461,096,423 1,267,832 3,114,152 3,252,567 3,377,303 3,498,889 321,596 375,925 180,401 877,921 344,108 338,332 198,441 880,881 Accrued expenses Total C.L. Long-term debt Common stock Retained earnings Total equ Total L&E 300,000 311,917 611,917 300,000 624,646 300,000 796,423