# Data Interpretation - Pie Charts - Discussion

Discussion Forum : Pie Charts - Pie Chart 4 (Q.No. 2)

*Directions to Solve*

The pie chart shows the distribution of New York market share by **value** of different computer companies in 2005.

The pie chart shows the distribution of New York market share by **volume** of different computer companies in 2005.

Number of units sold in 2005 in New York = 1,500

Value of units sold in 2005 in New York = US $1,650,000.

2.

Over the period 2005-2006, if sales (value-wise) of IBM PC's increased by 50% and of Apple by 15% assuming that PC sales of all other computer companies remained the same, by what percentage (approximately) would the PC sales in New York (value-wise) increase over the same period ?

Answer: Option

Explanation:

If we assume the total sales to be 100 in the first year, IBM's sales would go up by 50% (from 28 to 42) contributing an increase of 14 to the total sales value.

Similarly, Apple's increase of 15% would contribute an increase of 2.1 to the total sales value. The net change would be 14 + 2.1 on 100. (i.e., 16.1%)

Discussion:

24 comments Page 3 of 3.
CHIDRE said:
9 years ago

Here 50% of IBM sales is increased okay but why you are taking 50% on 28 instead of 10%? Because 1st chart is of market share, second chart is of sales.

Zahid said:
1 decade ago

@Anoop.

From where did you get 14 and 2.1 ?

From where did you get 14 and 2.1 ?

Anoop said:
1 decade ago

Total sales in value in 2005 = US $1,650,000.

Since this is all about percentage the value doesn't matter.

So we assume the total sales in value in 2005 = US$100(instead of 1650000)

In 2005 IBM's contribution was 28% = $28(in cash)

IBM got 50% increase in sales ie $14 (14% of 100)

In 2005 Apples's contribution was 14% = $14(in cash)

Apple got 15% increase in sales ie $ $2.1 (2.1% of 100)

The net increase in sales = 14+2.1

=16.1

%ge increase in sales = 16.1*100/100

= 16.1

Since this is all about percentage the value doesn't matter.

So we assume the total sales in value in 2005 = US$100(instead of 1650000)

In 2005 IBM's contribution was 28% = $28(in cash)

IBM got 50% increase in sales ie $14 (14% of 100)

In 2005 Apples's contribution was 14% = $14(in cash)

Apple got 15% increase in sales ie $ $2.1 (2.1% of 100)

The net increase in sales = 14+2.1

=16.1

%ge increase in sales = 16.1*100/100

= 16.1

Joy broto nath said:
1 decade ago

I cannot understand how IBM sales if go up by 50% contribute to increase of 14 to total sales?

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