Posts by spiritsofadvent

    Dear Experts


    Please can you help me with my problem. I want to create a formula for the following utility bill / cost. the only unit that changes is the "units used".



    month jan = 100 units
    month feb = 110 units
    therefor units used in Jan = 10 units


    units used 10 x 25 (pounds - cost) = 250 pounds
    250 pounds + 8% (tax) = 270 pounds


    270 pounds + 19% (high time tax) = 321.30 (pounds)


    total cost of the 10 units used =


    IN SUMMARY I SIMPLY WANT TO ADD INTO SPREAD SHEET THE UNITS USED AND LIKE MAGIC THE ANSWER WILL APEAR. This is request for help in creating a formula.


    Dec Feb


    A B C
    3 Water 131 140
    4 Water Dif 9
    5 Water*25 225
    6 x 8% 18
    7 Sub Tl 243
    8 x 19% 46.17
    9 W Total 289.17


    My formula is:


    =SUM((((C4*25)*0.08)+(C4*25))*0.19)+((((C4*25)*0.08))+(C4*25))


    The formula does not include water difference calculation ie 3c-3b becuase i dont know how.


    Kindly in advance Monika