The correct option is C 1557
Given the original Marked price = Rs18,000
After 30 % discount, the shopkeeper buys it for 0.7×18,000=Rs12,600
Total CP which he bears with the overheads is Rs12,600+Rs950+Rs450=Rs14,000
And if Selling Price =Rs90100×18,000=Rs16,200 (that is at 10 % discount on the marked price ),
then,
Profit % =S.P−C.P.C.P.×100=16,200−14,00014,000×100=1170×100=1557 %