Are your hens free range? Can people see the hens? How do you advertise eg - sign at the gate or what? What size are your eggs?
Sorry for all the questions, just trying to see if there is any particular reason your sales have dwindled.
I have noticed free range eggs in the supermarket are quite cheap at the moment - special offers on packs of 15. Perhaps people are just buying these bargain eggs at the moment?
I leave my eggs by the gate - £2 a dozen. Mixed sizes, but most are large. I have probably 60 laying hens, and 20 banties and silkies (bantam eggs sell for £1 dozen). My hens can be seen from the lane, obvious they are free range. I could probably sell double the amount of eggs. I have lots of regular people who come every week. They know we do not have eggs in winter, and once my sign went out last week, every box has sold.
There are 3 other people close by selling free range eggs too .....one sells his for £1.50, but there seems trade for us all.
I would consider dropping your eggs to £1 for 6, to see if that makes a difference......it may do.