Need to round in multiples of 0.25

Question

I need to round the currency amount in 0.25, 0.50, 0.75 and if greater than 0.75, it must round to the next integer.

How to do it?

Example need to round:

• 25.91 to 26,
• 25.21 to 25.25
• 25.44 to 25.50

and so on.

Answer 1

If you want to round to the next highest quarter, you can use math.ceil().

>>> import math
>>> def quarter(x):
...     return math.ceil(x*4)/4
...
>>> quarter(25.91)
26.0
>>> quarter(25.21)
25.25
>>> quarter(25.44)
25.5

If you want to round to the closest quarter instead of the next highest, just replace math.ceil with round:

>>> def nearest_quarter(x):
...     return round(x*4)/4
...
>>> nearest_quarter(4.51)
4.5