first take known information
16 bottles per box
135mL per bottle
575.48 mL per batch
take 16 x 135 for the total mL in each box
16 x 135 = 2160
then divide this by the mL per batch
2160/575.48 = 3.75
but since you can't make only 75% of a batch, you would round up to 4 batches