Fast please

Dear student,
Case1:
We know, P%=PC.P×100=S.P-C.PC.P×10020=540-XX×100X=5540-XX=2700-5X6X=2700X=27006=Rs 450
Case 2:
L%=LC.P×100=C.P-S.PC.P×1005=X-540X×100X=20(X-540)X=20X-10800-19X=-10800X=Rs 568.42

Regards

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