Profit & Loss

Cost price:

The amount on which an object is purchased(C.P).

Selling Price:

The amount on which an object is sold(S.P).

Gain

the additional amount which we get when we sell a product greater than Cost price.

Loss

The product price(S.P) is less than Cost Price(C.P)

Gain and Loss

Gain = S.P - C.P
Loss = C.p - S.P

In percentage

Gain in % = (Gain * 100) / Original price or C.P
Loss in % = (Loss * 100) / Original price or C.P

Selling Price

S.P = ( (100 + Gain in %) / 100 ) * C.P
or
S.P = ( (100 - Loss in %) / 100 ) * C.P

Cost Price

C.P = ( 100 / (100 + Gain in %) ) * S.P
or
C.P = ( 100 / (100 - Loss in %) ) * S.P

If any article is sold at some x% profit then the S.P = C.P + x% C.PIf any article is sold at some x% loss then the S.P = C.P - x% C.P