calculate  remaining budget to bill 

Number Styles Cells Editing Analysis Sensitivity E F G H Budget Effort Write-Offs Revenue Billing Remaining Budget to Bill 75,000 72,272 0 72,272 70,000 675,000 493,147 85,000 61,657 545,000 414,822 OOO 0 493,147 481,258 0 61,657 55,650 0 414,822 414,822 350,000 312,711 0 312,711 310,700 752,500 109,590 15 109,575 105,575 845.500 456,441 2.568 453,873 445,263 625,000 508,464 425 508,039 505,000 852,000 139,388 0 139,388 138,300 325,000 256,999 1,687 255,312 250,000 745.550 519,000 4,688 514,312 413,250 85,500 82,364 4,833 77,531 77,531 7,96