Build me a windows executable software for "Unit Value Calculations"

The “Unit Value is a basis to ascertain profit on an investment at any selected time scientifically.” As the unit system is being used by ‘Taqwa’, the word ‘Unit’ is used in place of the base currency in India (INR) as; 1 Unit = 1 Rs to be applied for any selected product with Taqwa, for example: Suppose Taqwa receives Rs 1,00,00,000 under Fixed Deposit for Investment from various depositors within a month at different level of times. Thus, the above amount will be converted into 1,00,00,000 units of Rs 1 each value (i.e. 1 Unit = 1 Rs). Now, let us assume Mr. X invested Rs 50,000 i.e. 50,000 units and the ratio of profit/loss sharing as agreed between Taqwa and Mr. X is 75:25 respectively, based on the principles of “Mudaraba”. One month after investment the profit is received at 12% raising the total investment sums to Rs 1,01,00,000. The value of 1 “unit” after the period of one month calculated will therefore be: 1,01,00,000/1,00,00,000 = Current Unit Value, that comes to Rs 1.0100 in this example: Therefore, the proportionate share of Mr. X in profit will be: Number of units held by Mr. X i.e. = 50,000 Current value of above units Rs 1.01 will be (Units 50,000 x Rs 1.01) = Rs 50,500 Initial amount invested by Mr. X = Rs 50,000 Total profit earned on above investment = Rs 500 Less Taqwa share profit at 25% = Rs 125 (-) Net Profit to Mr. X is = Rs 375 Taqwa will apply the same procedure of the “Unit Value” to the required product for all their subsequent calculation, as this will make assessment of profit/loss simple and easy despite the complications of withdrawals and fresh investment at different periods of time and every depositor/ investor will be able to trace profit on his/her investment at any selected time, scientifically.