dont understand how to find external finance thats required. Please show math

A sale Revenue 5.000 Fa25,000 18000 Income statement for yr ended 1215 112500 = x 12,57 62.51.1) Sogooo 1,900,000 COGD 600000/200,000 = 100.000 754 GrOSS profits $200,000 opp 100,000/600.000 12.57. 100.000 12.54900.000 125CC Net pretits before fax $100.000 OE 11 2500 Taxes (2.17.) Caix. x112,500) 21.000 3402 NP after tax 2 7 9.000 $79420 Cash dividends 20.000 35000 Relained Eames 59.000 $43,420 Balance sheet 12/31/19 Cash 3 acco 30000 Marketable securities 18,000 AR (87 x 906,000 .150.000 162,000 Inv. +100,000x1265 tint. 112,500 1 Total CALAM $3.22500 Net fixed Assets 350 00 +42000-17000 - 315.000 Ictal Assets $149150 * 100,000 Taxes payable 20,000 357.* 34080 8520 Other CL SOOD 5006 Total CL $ la5.000 $124020 Long-term debt 20000 200.000 Total liabilities $325000 $306,020 common stock 150000 150,000 Retained Earnings 175.000 + 43420 2 18420 Total Lt SHE $450,000 $694440 c Analyze, Resulting external Financing reauired. 6 12,500 A sale Revenue 5.000 Fa25,000 18000 Income statement for yr ended 1215 112500 = x 12,57 62.51.1) Sogooo 1,900,000 COGD 600000/200,000 = 100.000 754 GrOSS profits $200,000 opp 100,000/600.000 12.57. 100.000 12.54900.000 125CC Net pretits before fax $100.000 OE 11 2500 Taxes (2.17.) Caix. x112,500) 21.000 3402 NP after tax 2 7 9.000 $79420 Cash dividends 20.000 35000 Relained Eames 59.000 $43,420 Balance sheet 12/31/19 Cash 3 acco 30000 Marketable securities 18,000 AR (87 x 906,000 .150.000 162,000 Inv. +100,000x1265 tint. 112,500 1 Total CALAM $3.22500 Net fixed Assets 350 00 +42000-17000 - 315.000 Ictal Assets $149150 * 100,000 Taxes payable 20,000 357.* 34080 8520 Other CL SOOD 5006 Total CL $ la5.000 $124020 Long-term debt 20000 200.000 Total liabilities $325000 $306,020 common stock 150000 150,000 Retained Earnings 175.000 + 43420 2 18420 Total Lt SHE $450,000 $694440 c Analyze, Resulting external Financing reauired. 6 12,500