because the slave owners would make alot of money from farming.
The BA II PLUS, our most popular financial calculator for business professionals and students. Finance and science capabilities include: 1  Time-Value-of-Money calculations. 2  Amortization schedules.3  Cash-flow analysis, NPV and IRR.4  Depreciation with four different methodologies.he BA II PLUS, our most popular financial calculator for business professionals and students. Finance and science capabilities include: 1  Time-Value-of-Money calculations. 2  Amortization schedules.
What can I use to check my calculations. If you are checking your payroll calculations or running a âwhat ifâ calculation for the tax year 2015 to 2016 you can do it using the calculators or manually using tax tables.The figures produced cannot be entered into your payroll software. You can no longer run your payroll manually.ou can use these calculators to check your payroll calculations: 1  Use the PAYE tax calculator. 2  Use the National Insurance contributions calculator. 3  Use the Directorâs National Insurance contributions calculator.