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an increase by vs an increase of

Both 'an increase by' and 'an increase of' are correct, but they are used in different contexts. 'An increase by' is used when referring to the amount or percentage by which something has increased, while 'an increase of' is used when talking about the total amount of the increase.

Last updated: April 09, 2024 • 671 views

an increase by

This phrase is correct and commonly used when referring to the amount or percentage by which something has increased.

Use 'an increase by' when you want to specify the amount or percentage by which something has increased. For example, 'There was an increase by 20% in sales last quarter.'

Examples:

  • There was an increase by 10 points in the exam scores.
  • The company saw an increase by 15% in revenue this year.
  • The population of the city experienced an increase by 5% over the past decade.
  • 340,000 were studying abroad in 2011 which was an increase by 20% over the previous year.
  • Therefore, the PDB 2010 foresees EUR 56.4 million for the centre which represents an increase by 13.5% compared to the budget 2009.
  • Italy remains the principal market, posting an increase by 12.3%.
  • The total volume of trade between the Piedmont and the Russian Federation exceeded 333 million euros, an increase by 7.3%.
  • Italy obtained 600000 tonnes allocated in two steps (in 2000/2001 and in 2001/2002) corresponding to an increase by 6 % of the quota 1999/2000.
  • In the Netherlands, ready-mix concrete sales for the first three months of the year showed an increase by 9.1% with prices down 3.0%.
  • Future estimates forecast an increase by 30% of the household consumption of gas in 2020.
  • The data for this three categories record an increase by 10% between the same period 2010, with a total turnover of 217.2 million Euro.
  • Have been released the data on Internet revenues for February 2012 and they show an increase by 14,1% compared to the same period of 2011.
  • The growth was driven in particular by the long-haul sector which recorded an increase by 7.3 per cent with 230,450 passengers carried.
  • As usual, export played a leading role, with an increase by 13.5 percent.
  • The most recently available figures show an increase by 25% in Germany over the previous year.
  • The results show that an increase in temperatures of 1.5 degrees could determine an increase by 40% of areas devastated by fires, especially in Spain.
  • The European Parliament will monitor very closely the implementation of previous research programmes bearing in mind that the funding for the current FP7 represents an increase by 75% compared to the former MFF.
  • Why has Parliament now agreed on an increase by 2.91%?
  • May 2004 In the first quarter of the new business year 2004, Delticom registered a turnover of 13.6 million Euro, an increase by 40 percent compared to the same time period last year.
  • In Milan, notwithstanding the feared Expo effect - says Enrico Ruffilli at Uvet Amex - our survey shows an increase by 10% of the overnight stay cost during the first nine months of this year compared to the same period of last year.
  • Despite the negative scenario, the footwear industry as a whole gives an important contribution to the country: the trade balance in the preliminary figures would rise to 3.8 billion Euros, an increase by 12.6% compared to 2011.
  • The Italian ISS, the Superior Institute for Healthcare, reports an increase by 17% of legionellosis in 2017 in Italy, compared to 1.700 cases occurred in 2016.
  • Over the period considered market share of the Community industry decreased by 14 %. After an increase by 12 % between 2001 and 2002, the market share has been constantly decreasing.

Alternatives:

  • an increase of
  • a rise by
  • a growth by
  • a jump by
  • a surge by

an increase of

This phrase is correct and commonly used when referring to the total amount of the increase.

Use 'an increase of' when you want to talk about the total amount of the increase without specifying the exact percentage or number. For example, 'There was an increase of $100 in the budget.'

Examples:

  • There was an increase of 50 new employees in the company.
  • The report showed an increase of 200 pages compared to the previous version.
  • The study revealed an increase of 10 degrees in temperature over the past week.
  • That's an increase of 69%.
  • Compared to 2012 there was an increase of 39%.
  • Nonetheless, we're ticking off an increase of almost 0.5 percent.
  • We're looking at an increase of so-called unusual malfunctions.
  • 5.3 million tractors were produced, an increase of 17.6 per cent.
  • In 2003 the airport handled 10 million passengers, representing an increase of 78% since 1998.
  • The shipments eastbound from the Europe North to Asia and Indian subcontinent will endure an increase of 150 dollars/teu.
  • In this regard, sales registered an increase of about 30%.
  • For this year, Savills expects an increase of 14%.
  • This was compared with an increase of 2.6 points from 22.5 in the patients taking placebo.
  • This is often associated with an increase of certain blood fats (triglycerides).
  • - an increase of certain enzymes in the blood (creatine phosphokinase).
  • As reward, the vulgar adventurer demanded an increase of three millions in his civil list.
  • Second place is for Vietnam with an increase of 29.1 percent.
  • This was an increase of 67 percent over 2015.
  • This was an increase of 22.5% over 2006.
  • This would represent an increase of nearly 50 percent from present pricing.
  • That's an increase of 69 percent.
  • That's an increase of 18 votes for him.
  • This is an increase of 18 percent-almost a fifth-compared to the production level recorded in 2016: 171 million tons.

Alternatives:

  • an increase by
  • a rise of
  • a growth of
  • a jump of
  • a surge of

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