Oof!, that's a gut punch.
However much you love your local community, they are not supporting your business financially. That much is clear.
Do you have a business manager? What is their plan to turn this around?
I no longer see very many people riding bicycles anymore - almost none. All the kids and adults are on e-bikes - almost all of them. They may be riding irresponsibly. They may be overweight with no path to weight reduction. No matter, they are riding multi-$k e-bikes and e-motorcycles! That could be a clue.
Does your co-op work on e-bikes? Can your guys rebuild/replace batteries? Can they replace the electronic control modules? Can they piece one together from otherwise dead e-bikes?
Do your guys work on beach/strand cruisers? I see more of those than I see "ten speeds" with their turned down bars. I see more cup holders with tiki cups and drinking straws mounted on the bars than I see water bottles in their holders.
Set up a stand at a popular cycling venue offering free services (oil & adjustments). This might be a bike-a-thon, Sunday afternoon around the lake,... whatever.
I could go on but will stop here.
It's just a few thoughts based on what I saw on my ride today,... and every day.