feat: add computePriceChange helper#656

Godfrey-Delight wants to merge 4 commits into

accesslayerorg:mainaccesslayerorg/accesslayer-server:mainfrom

Godfrey-Delight:feat/compute-price-change-helperGodfrey-Delight/accesslayer-server:feat/compute-price-change-helperCopy head branch name to clipboard