The importance of data analysis in our national examination must have been well known to everyone, and some of these concepts are relatively unfamiliar, such as contribution rate and driving growth, which are used to measure the role of part of the growth on the whole, so what kind of connection and difference do these two concepts have, let's take a look at it today.
1. Contribution rate
1.Meaning: The extent to which the growth of a part of the whole contributes to the growth of the whole.
2.Calculation formula:
Contribution rate = partial growth volume Overall growth amount.
3.The sum of the contribution rate of each part = 100%.
2. Pull the ......Growth ......percentage points
1.What it means: The growth of one part of the whole causes the growth of the whole relative to the original.
2.Calculation formula:
Pull growth = partial growth overall growth.
3.The sum of the percentage points that each part drives the overall growth = the overall growth rate.
3. The difference and connection between the two
1.Differences:
The contribution rate is to divide the growth of a certain part by the growth of the whole, and the percentage point of driving growth is to divide the growth by the base period value of the whole, so the denominator of the calculation formula of the two is different, so do not confuse it.
2.Contact:
Contribution rate = partial growth volume Overall growth volume = partial growth volume (overall base period value Overall growth rate) = Pull growth volume Overall growth rate.
Overall growth rate = Contribution rate of driving growth.
4. Example questions
1.In May 2013, the total retail sales of consumer goods reached 1,888.6 billion yuan, a year-on-year increase of 129%。Among them, the retail sales of urban consumer goods were 1,638.4 billion yuan, a year-on-year increase of 126%；The retail sales of rural consumer goods were 250.2 billion yuan, an increase of 148%。
Q: In May 2013, the contribution rate of retail sales of rural consumer goods to the total retail sales of consumer goods was as follows:
a. 14.95% b. 19.87%
c. 33.38% d. 43.25%
Analysis] From the material, it can be seen that the search is (2502 148%)/(1+14.8%)÷18886×12.9%)/（1+12.9%）≈2502×14.8%）/(18886×12.9%)≈25×15）/（190×13）=375/2470=15.x%。Select the closest A option.
2.In 2011, Shanghai's cultural and creative industries achieved an added value of 1,9234.5 billion yuan, an increase of 13% over the previous year, accounting for 10 percent of Shanghai's GDP02%, contributing 15% to Shanghai's GDP growth5%, driving the growth of the water economy 13 percentage points.
Q: In 2011, Shanghai's GDP grew by about:
a. 8.4% b. 9.8% c. 11.9% d. 83.9%
Answer] a. Analysis] From the materials, it can be seen that the overall growth rate = driving growth contribution rate = 13/15.5=8.3x%。Select the closest A option.
The above is the relevant content about the two concepts of contribution rate and driving growth, I hope that through this article, you can have a certain understanding of these two concepts, and you can know which formula should be used to solve the problem when you encounter the relevant test points in the future.