Formulas Flashcards
Percentage change increase
Increase equals new number take away original number
increase divided by original number x one hundred
Percentage change decrease
decrease equals original number take way new number
decrease divided by original number x one hundred
THEME ONE: PED
change in quantity demanded divided by change in price
greater than minus one equals elastic
lower than minus one equals inelastic
THEME ONE: YED
change in quantity demanded divided by change in income
positive figure less than one equals normal good
positive figure more than one equals luxury good
negative figure equals inferior good
THEME ONE: Market Share
total sales of firm divided by total sales in market x one hundred
THEME TWO: Sales Revenue
selling price x sales volume
THEME TWO: Sales Volume
sales revenue divided by selling price
THEME TWO: Contribution per unit
selling price per unit take away variable costs per unit
THEME TWO: Total Contribution
contribution per unit x number of units sold
THEME TWO: Profit or Loss
total contribution take away fixed costs
or total revenue take away total costs
THEME TWO: Budget Variance
actual figure take away budgeted figure
THEME TWO: Break even point
where total revenue equals total costs
THEME TWO: Break even output
total fixed costs divided by contribution per unit
THEME TWO: Margin of safety
current sales volume or output take away break even output
THEME TWO: Gross profit
revenue take away total variable costs