The cost price is C.P.=$208.50
The original selling price is $291.90
Operating expenses are 28% of the cost.
Thus,
28% of cost=28% of 208.50=$58.38
Thus the break event point is
Break event point=208.50+58.38=$266.88
The original selling price is marked 35% down.
Thus the reduced price is
Reduced price=(100%-35%)x291.90=65%x291.90=$189.735
Thus the operating loss is given by
Operating loss=Break event point-Reduced price=266.88-189.735=$77.15
Thus the operating loss is $77.15