function formatNum(n: number) :: string:
    set {_l::*} to split "k,M,B,T,Qn,Qi,Sx" at ","
    set {_i} to min(floor(log({_n})/3), size of {_l::*})
    return "%{_n}%" if {_i} <= 0
    set {_i2} to 1000^{_i}
    return "%{_n}/{_i2}%%{_l::%{_i}%}%"