add FmtPercent logic.

1 files changed, 10 insertions, 0 deletions

diff --git a/lu_CD/lu_CD.go b/lu_CD/lu_CD.go
index 45392cee..f7ccdc73 100644
--- a/lu_CD/lu_CD.go
+++ b/lu_CD/lu_CD.go
@@ -109,3 +109,13 @@ func (lu *lu_CD) FmtNumber(num float64, v uint64) []byte {
 
 	return b
 }
+
+// FmtPercent returns 'num' with digits/precision of 'v' for 'lu_CD' and handles both Whole and Real numbers based on 'v'
+// returned as a []byte just in case the caller wishes to add more and can help
+// avoid allocations; otherwise just cast as string.
+// NOTE: 'num' passed into FmtPercent is assumed to be in percent already
+func (lu *lu_CD) FmtPercent(num float64, v uint64) []byte {
+
+	s := strconv.FormatFloat(math.Abs(num), 'f', int(v), 64)
+	return []byte(s)
+}