These figures are partially guesstimated, as notions of accounting were pretty primitive in the Fourteenth Century.

Income                  Item                    Ducats                  Notes                   
                       Customs                  7,800.000              Range:                  

                                                                        3,800,000-14,600,00     

                                                                        0                       
                        Taxes                    9,600,000              c. 3.25 a head, but     

                                                                        not so levied           
                        Mining Fees              2,100,000              Cornwall c. 60%;        

                                                                        rest Devonshire.             
                        Misc. Fees               1,200,000              Not always levied       
                        Scutage                 7,200,000                                       
                        Clerical 10th           11,100,000              *                       
                        Aquitaine               3,000,000               By right as Duke        
                        Loans                                           Range:                  

                                                                        7,200,000-12,000,00     

                                                                        0**                     
Outgo                   Peace                   18,000,000-21,000,00                            

                                                0                                               
                        War                     30,000,000-48,000,00                             

                                                0                                               

* A 10th was granted by the Pope in 1327, 1334, 1336; a 20th in 1330, 1333. As the Popes were French during most of the war, no more church taxation was allowed for the duration. This had a lot to do with Henry VIII taking over control of the English church in the 16th century. It was money, not religious beliefs, that caused the most trouble in the medieval church.

**When Ed defaulted he owed c. 410 million ducats (i.e., 1.367 million florins or 683 thousand pounds. The Bardi & Peruzzi were capitalized at about four times that).