INDEX PRICE SOFTWARE

Hello. I want to display on my website a INDEX Price Chart. I need to be able to make the software track the price of 150 crypto currencies and then calculate (BASED on the ratio of allocation) the index price of the crypto currency basket. FOR EXAMPLE: we make the software track 150 crypto currencies, following the price of one of the major crypto exchanges, then we specify in the software how much of each of the 150 crypto's we own (example: 14 bitcoin, 10 etherium, 200 XRP.....etc.) and based on this ratio the software must calculate the overall price movement (Index price). If we would have just 3 crypto currencies: Bitcoin, Ethereum, Bitcoin Cash. We make the software track the price of all 3 of them and then we specify (input) how much of each we own, and based on that the software must calculate the overall price of the index price. Index price measures the price of the underlying crypto currencies by volume allocation and price move. The software must display the index as a chart on my website. *****An asset index is any composite indicator such that the underlying indicators on which it is based. reflect an individual's, or more often a household's, ownership (or lack thereof) of a range of assets, with the latter understood in a broad sense. Thus, in abstract terms, an asset index is any indicator Ai.*******