Sumwise

Percentage Change from 80 to 50

From 80 to 50 is a 37.5% decrease

Change
-37.5%
Difference
-30
New ÷ old
0.625
Direction
decrease

Sumwise · Maintained by Theo Abbott (pen name) · automated checks · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How the checks work

How to work it out

  1. Difference: 50 − 80 = -30
  2. Divide by the starting value: -30 ÷ 80 = -0.375
  3. Multiply by 100: -37.5%
  4. Check: Work forwards from the start: 80 × (1 − 0.375) = 80 × 0.625 = 50.

In a spreadsheet: =(50-80)/80*100. Always divide by the starting value, not the new one. A rise from 40 to 50 is +25%, but the fall from 50 back to 40 is −20%.

What the result means

The new value is 62.5% of the old one: for every 100 at the start there are now 62.5, so 37.5 out of every 100 have gone.

Sales: a price cut from $80 to $50 is a 37.5% discount.

Why the change back is different

A 37.5% fall followed by a 37.5% rise does not bring you back to 80: it gives 68.75. The second percentage is taken of 50, not of 80, so to undo this change you need 60% instead.

Related results

Results for nearby numbers
80 to 48

From 80 to 48 is a 40% decrease

80 to 49

From 80 to 49 is a 38.75% decrease

80 to 51

From 80 to 51 is a 36.25% decrease

80 to 52

From 80 to 52 is a 35% decrease

80 to 60

From 80 to 60 is a 25% decrease

The other way round: Percentage change from 50 to 80. Percentage change is not symmetric: from 80 to 50 is -37.5%, but from 50 back to 80 is 60%, because the starting value is the base. For a comparison that is the same both ways, use the percentage difference between 50 and 80: 46.1538%. See Percentage difference between 50 and 80.

Practice

15 to 78
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From 15 to 78 is a 420% increase

56 to 51
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From 56 to 51 is a 8.9286% decrease

99 to 93
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From 99 to 93 is a 6.0606% decrease

86 to 38
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From 86 to 38 is a 55.814% decrease

57 to 44
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From 57 to 44 is a 22.807% decrease

3 to 37
Show answer

From 3 to 37 is a 1,133.3333% increase

Calculate another

How answers are calculated and checked: methodology.

Questions

Percentage Change from 80 to 50

Going from 80 to 50 is a 37.5% decrease. Formula and steps.

Is going from 80 to 50 an increase or a decrease?

A decrease: the value fell by 30, which is 37.5% of the starting value.

What is the percentage change from 50 back to 80?

60%. It is a different number because the starting value is now 50, not 80.