the number of wine bottles was 1 and that day he increased it to 2. also `birden` has a meaning of `suddenly`. in some sentences, it can be interpreted as `he suddenly increased the no of bottles to 2` but i think it is the first case here. he was consuming 1 bottle in general, that day he decided to use 2, maybe because he had visitors.

içtigi şarap sayısını arttırmak gunde 1 tane içi yosa onu 2 ye çıkarmak

bu cümle bağlama göre anlamlandırılabilir ancak. bu sebeple cümlenin öncesi ve sonrası da yazılmalıdır.