Found 2 exchanges where Chromia is traded for BTC. According to the data on 4 August the most optimal price to exchange CHR for BTC is ₿0.00000021 for 1 Chromia. This rate is fixed at Upbit at the maximum trading volume of the pair CHR/BTC - 0 BTC.
The maximum daily trading volume is observed in the CHR/USDT trading pair at BitDelta and reaches ₿ 30.86 (1.17% of the exchange's total trading volumes) at the price ₿ 0.0000002 per 1 CHR.
The minimum price to buy CHR for BTC is 0.00000021 - on the exchange Upbit Indonesia.
The maximum price to buy CHR/BTC is 0.00000021 - on the exchange Upbit.