Fund Return Target Fund Return Target
a 2% (3%) a
0.02
-0.03
b (3%) (10.3%) b
-0.03
-0.103
c (1%) (1%) c
-0.01
-0.01


Code:
// Table1
let
    Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
    Replace = Table.ReplaceValue(Source,"", "",(c,o,n)=> Number.From(Text.Remove(Text.Replace(c,"(","-"),")")),{"Return","Target"} )
in
    Replace