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#### Checkpoint description

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#### Christian Lawson-Perfect3 years, 1 month ago

Gave some feedback: Ready to use

#### Christian Lawson-Perfect3 years, 1 month ago

Saved a checkpoint:

Used the currency function to make sure prices are displayed properly (two d.p. when not a whole number of pounds)

Good question!

#### Chris Graham3 years, 1 month ago

Gave some feedback: Needs to be tested

#### Chris Graham3 years, 1 month ago

I have changed "percentage multiplier" to "decimal multiplier" in the step and advice. Also changed the advice so that the percentage change is calculated first. Asking the student to multiply by 100 then subtract 100 in one step meant that they skipped completely the idea of, say, a 108% change in the value.

I've removed some variables which were strange / not required.

#### Chris Graham3 years, 2 months ago

Gave some feedback: Has some problems

#### Chris Graham3 years, 2 months ago

Too many decimal places are retained in the advice.  In two places (step and advice), $x$ is referred to as the "percentage multiplier". Unless I'm out of touch with the terminology, I would call this a decimal multiplier.

Published this.

#### Stanislav Duris3 years, 2 months ago

Saved a checkpoint:

This question should be good to go. If not, the only thing I can think of as an advice is maybe you can adjust the first part of advice so that if years = 2, the latex does not display the 2 while calculating the root. This would be done via conditional visibility but I don't think doing this is necessarily essential. Maybe playing around with numbers would change things (the rounding could result in slightly different correct answers), so make sure that slight errors are allowed if that happens.

#### Stanislav Duris3 years, 2 months ago

This question was originally a part c) in question Exponential increase and decrease.

#### Stanislav Duris3 years, 2 months ago

Gave some feedback: Needs to be tested

#### Stanislav Duris3 years, 2 months ago

Created this as a copy of Cumulative percent decrease.
Simple interest Ready to use Stanislav Duris 20/11/2019 14:42
Cumulative percent decrease Ready to use Stanislav Duris 20/11/2019 14:36
Exponential increase Ready to use Stanislav Duris 20/11/2019 14:38
Ida's copy of Cumulative percent decrease draft Ida Landgärds 12/04/2018 10:54
Spørsmål 4 draft Ida Landgärds 03/08/2020 12:41
haifa's copy of Cumulative percent decrease draft haifa abd 01/05/2018 14:20
Consumer Arithmetic - Simple Interest draft Paul Hancock 24/07/2018 03:08

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