Question

Comparing quantities all formulas

Answer 1

Discount = Marked Price – Sale Price.
Discount = Discount % of Marked Price
CP = Buying price + Overhead expenses
Sales tax is charged on the sale of an item by the government and is added to the Bill Amount.
Sales tax = Tax% of Bill Amount
Compound interest, A = P + I
Amount A = P(1 + R/100)n

Answer 2

$\begin{gathered}\small\boxed{ \begin{array}{cc}\large\sf\dag \: {\underline{ \: Formulas \: of \: Comparing \: quantities}} \\ \\ \bigstar \: \sf{Gain = S.P – C.P} \\ \\ \bigstar \:\sf{Loss = C.P – S.P} \\ \\ \bigstar \: \sf{Gain \: \% = \Bigg( \dfrac{Gain}{C.P} \times 100 \Bigg)\%} \\ \\ \bigstar \: \sf{loss \: \% = \Bigg( \dfrac{loss}{C.P} \times 100 \Bigg)\%} \\ \\ \bigstar \: \sf{S.P = \dfrac{100+Gain\%}{100} \times C.P} \\ \\ \bigstar \: \sf{ C.P =\dfrac{100}{100+Gain\%} \times S.P} \\ \\\bigstar \: \sf{ S.P = \dfrac{100-loss\%}{100} \times C.P} \\ \\ \bigstar \: \sf{ C.P =\dfrac{100}{100-loss\%} \times S.P}\end{array} }\end{gathered}$ .