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Percentages (I) (Percentage change (Percentage change= new v- original…
Percentages (I)
Percentage change
Percentage change= new v- original v/original v x 100%
New value= original v x (1+ percentage change)
Percentage increase
Increase= new value - original v
Percentage Increase= increase/original v x 100%
Increase= original v x percentage increase
New value= original v x (1 + Percentage increase)
Percentage decrease
Decrease= original v - new v
Percentage decrease= decrease/original v x100%
Decrease= original v percentage decrease
New value= original v x (1-precentage decrease)
Profit
profit= selling price - cost price
Profit percentage= profit/cost x 100%
Profit= cost x profit percent
selling price= cost x (1+ profit percent)
Loss
Loss= cost - selling price
Loss percent= loss/cost x 100%
Loss = cost x loss percent
Selling Price= cost price x (1-loss percent)
Discount
Discount= marked price - selling price
discount percent+ discount/marked price x 100%
Discount= marked price x discount percent
selling price x (1- discount percent)