the owner is a retard, as is common amongst the greedy petty bourgeois, for assuming the -4 customers for every 50 cent increase is a constant rate.
There is simply not enough information here with out complex socio-economic analysis of the customers and conditions of the resteraunts location. Further the problem does not even seem to give the option to consider that lowering the price might increase the number of customers and be more profitable overall.
This is rigid thinking. You should ignore this problem it will only confuse you. Condemn whoever gave it to you.
