Question

The price of sugar increases from rupees 28 to rupees 34 find the percentage increase

Answer 1

To calculate the percentage increase:

First: work out the difference (increase) between the two numbers you are comparing.

Increase = New Number - Original Number

Then:  divide the increase by the original number and multiply the answer by 100.

% increase = Increase ÷ Original Number × 100.

If your answer is a negative number, then this is a percentage decrease.

To calculate percentage decrease:

First: work out the difference (decrease) between the two numbers you are comparing.

Decrease = Original Number - New Number

Then: divide the decrease by the original number and multiply the answer by 100.

% Decrease = Decrease ÷ Original Number × 100

If your answer is a negative number, then this is a percentage increase.

Step-by-step explanation:

For current senario

new number-34

original number- 28

diff- 34-28= 6

percentage increase= (6/28)×100 = 21.4%

Answer 2

Answer:

$21\frac{3}{7}$ %  Or, 21.42857143...%

Step-by-step explanation:

The previous price of sugar was 28 Rupees

The recent price of sugar is 34 Rupees

The  extra price is $(34-28)= 6$ Rupees

The percentage of the increased price is    $\frac{6}{28} *100%$ %

  And it's $21\frac{3}{7}$ %

 Or, 21.42857143...% (Ans)

The main method of solving this type of math is...

  The percentage of increased price

   = (Increased price / previous price ) * 100%

  The percentage of decreased price

  = (decreased price / previous price) * 100%

Remember that,

  In every case, the profit or loss is calculated on the investment.

Hope you understand the method...

By- Md. Mominur Islam Mahim.