Percentage Change
Percentage Change
Percentage Change: is calculated by dividing the change with original and multiplying with 100
Here are two ways to calculate a percentage change, use the one you prefer:
Method 1:
| Step 1: Calculate the change (subtract old value from the new value) |
| Step 2: Divide that change by the old value (you will get a decimal number) |
| Step 3: Convert that to a percentage (by multiplying by 100 and adding a "%" sign) |
| Note: when the new value is greater then the old value, it is a percentage increase, otherwise it is a decrease. |
Method 2:
| Step 1: Divide the New Value by the Old Value (you will get a decimal number) |
| Step 2: Convert that to a percentage (by multiplying by 100 and adding a "%" sign) |
| Step 3: Subtract 100% from that |
| Note: when the result is positive it is a percentage increase, if negative, just remove the minus sign and call it a decrease. |
ILLUSTRATION: A pair of socks went from Rs 5 to Rs 6, what is the percentage change?
Answer (Method 1):
Answer (Method 2):
ILLUSTRATION: Population in a country in the year 2010 was 99000 and in 2009 it was 90000. Find the percentage change.
Sol : Population in 2009 = 90000.
Population in 2010 = 99000.
Change = 99000 - 90000 = 9000
If radius of a circle is increased by 50% then area of the circle will be increased by | |||
| Right Option : C | |||
| View Explanation | |||
The income of Rohit increased from Rs 5000 to Rs 10000. Find the percentage change in the price.? | |||
| Right Option : A | |||
| View Explanation | |||
If redius of a circle is increased by 100% then area of the circle will be increased by | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [10]
It was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
