st: how to format ylabels in sts graph

[Caleb Southworth <caleb.southworth@gmail.com>]

sts graph defaults to proportions. Adding the option -per(100)-
changes the units on the yaxis to 100s. However the format is %9.1f
and I would like %9.0f (no decimal point).

(1) Is there a way to alter the format of the -per(#)- option?

(2) Can I get % signs after those ylabels?

Here's my syntax:

sts graph,  xlin(912, lpat(dash)) xlin(352, lpat(dot) lw(thick))
xlab(0(150)1500, angle(45)) ylab(,angle(0)) per(100)
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