How to round BPM to 5 (92 to 90 or 93 to 95)

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2

See there ...
Rundung auf 20er Schritte im Tag BMP
Set ... BPM_ROUNDBY=5

... or ...

BPM <== $mul(5,$div($add(5,$mul(2,%BPM%)),10))

DD.20150821.1352.CEST