Found 2 exchanges where Grass is traded for EUR. According to the data on 2 September the most optimal price to exchange GRASS for EUR is €0.287 for 1 Grass. This rate is fixed at Bitvavo at the maximum trading volume of the pair GRASS/EUR - 87.9 ths. EUR.
The maximum daily trading volume is observed in the GRASS/USDT trading pair at Aivora Exchange and reaches € 1 915 006.08 (0.403% of the exchange's total trading volumes) at the price € 0.293 per 1 GRASS.
The minimum price to buy GRASS for EUR is 0.285 - on the exchange Bit2Me.
The maximum price to buy GRASS/EUR is 0.287 - on the exchange Bitvavo.
Warning: some GRASS markets show an abnormally wide spread — those quotes may be unreliable (thin liquidity or off-market trades). Cross-check the volume against several venues.