[R] calculate value in dependence of target value

[Matthias Weber]

Hello together,

i have a litte problem. Maybe anyone can help me.

I have to calculate a new column in dependence of a target value.

As a example: My target value is 100.000
At the moment I have a data.frame with the following values.

     ID    VALUE
1   11    10000
2   12    50000
3   13    30000
4   14    20000

The new column ("MARGE") should be calculated with the following graduation:
Until the VALUE reach 50% of the target value (50.000) = 2%
Until the VALUE reach 75% of the target value (75.000) = 4%
Until the VALUE reach 100% of the target value (<100.000) = 8%
If the VALUE goes above 100% of the value (>100.000) = 10%

The result looks like this one:

     ID    VALUE  MARGE
1   11    10000          200      (result of 10.000 * 2%)
2   12    50000         1200     (result of 40.000 * 2% + 10.000 * 4%)
3   13    30000         1800     (result of 15.000 * 4% + 15.000 * 8%)
4   14    20000         1800     (result of 10.000 * 8% + 10.000 * 10%)

Is there anyway to calculate the column "MARGE" automatically in R?

Thanks a lot for your help.

Best regards.

Mat

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