Prove in Bancor that:
Price = (Balance / (Supply * CW),
where CW = Connector Weight
Reference 1: Page 6 of https://about.bancor.network/static/bancor_protocol_whitepaper_en.pdf
Note: After 2018, CRR is replaced by CW: Connector Reserve Ratio → Connector Weight
Reference 2: https://medium.com/@huobiresearch/huobi-beyond-the-white-paper-vol-4-bancor-algorithm-mathematical-economic-analysis-3d91977b6de1