4 to 6 hexadecimal numbers Conversion Formula

Business goals: --------------- Discover the formula/equation that has been lost to convert 4 to 6 hexadecimal numbers below. Example: --------------- We call out code "0EC878" WE CALL THIS CODE IN "B7F8" Numbers that are already operating: ----------------------------------- 0F325B = 507B 0F7658 = 9478 272809 = 393d 2F4F3C = 27D4 2FAD11 = CDD9 6B1959 = 114d 6DD24D = D331 Problem solving: ---------------- We need the mathematical formula using the inputs and outputs above that will work to answer the following equation: D12818 = ? Payment Terms: -------------- The first provider to figure out the formula wins the bid and project. !!ONLY BID IF YOU CAN FIGURE OUT THE FORMULA!!