PROFIT -:
if the cost price of an article is less than its selling price then the difference between the selling price and the cost price is known as profit
LET'S SEE FORMULA
![profit \: = \: sp - \: cp \\ \\ sp = cp + \: profit \: \: \\ \\ profit \: \% = (profit \: * 100)/( \: cp \: ) \\ \\ profit \: = (cp \: * \: profit \: \%)/(100) \\ \\ cp \: = (100 * sp)/(100 + profit\%)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/61me451qmsb03pwnsr151qagrzpyn74iy5.png)
LOSS
if the selling price of an article is less than its cost price then the difference between cost price and selling price is known as loss
let's see formula
![loss \: = cp - sp \\ \\ sp \: = \: cp \: - loss \: \\ \\ cp \: = loss \: + sp \\ \\ loss\% \: = (loss \: * 100)/(cp) \\ \\ loss \: = ( \cp * loss\% )/(100) \\ \\ sp = cp * ( (100 - loss )/(100) )](https://img.qammunity.org/2020/formulas/mathematics/middle-school/iae5e4imty2wg6lcgkv4nm7h7tifmo5tvj.png)