Find the percentage change in each of the following.
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1) An orange tree was 105cm tall but after a long drought, it reduced to 970mm.
= %
2) A businessman bought some goods for £70,500. After selling them, he made a difference of £1300.
= %
3) Yolanda bought a car worth £25,000. A year later, she sold the car for £17,500 due to depreciation. Calculate the percentage loss.
= %
4) During one particular year, it rained in Detroit on 123 days of the year. What percentage of days within the year was wet?
= %
5) Julia’s salary was £15,000 a month. Due to economic crisis, her company cut her salary to £7,650. Calculate the percentage change in her income.
= %
6) The population of Haiti was 1,005,103 in 2000. In 2011, there was an epidemic that killed a lot of people. The population reduced to 903,100. Calculate the percentage change in population.
= %
7) A tank contains 500litres of water. If 200litres is used what percentage of the water is left?
= %
8) A house wife spent $2700 of her monthly allowance of $9000 shopping for Christmas, what percentage of her allowance did she spend on shopping?
= %
9) The length of a playing field was 4000 cm. A contractor took part of the field to build a clinic. The length of the playing field is now 2790cm.What is the percentage change?
= %
10) A greengrocer bought 8 bunches of grape for $ 6.20 and was able to sell them for 1.20 per bunch. Calculate the percentage change in price.
= %
11) Tracksuits normally ticketed at $49.95 were discount by $19.95 what percentage discount was offered?
= %
12) Simon’s pay increased from $532.78 per week to $ 544.16 per week. What percentage increase was this?
= %
13) A plant was measured at the beginning of the week and the height was 12cm. At the end of the second week the plant had increased in height by 85mm. Calculate the percentage increase.
= %
14) A house was bought in 1999 for $190,000 in 2003 it was sold for $250,000.
a) Calculate the percentage increase.
b) Express this percentage in increase as an annual percentage rate.
= %
15) A greengrocer bought a carton of 24 dozen apples in which 84 were unsold. Calculate the percentage waste.
= %