I was asked the other day how I use my copy machine to change pattern sizes. I thought maybe there were others who would like the formula I use. I use an HP copier, but I think it would work on any kind.
To reduce: (14" to 12") divide 12 by 14 and then multiply by
100. (83%) divide the size you want by the size
you have times 100.
To enlarge: divide the size you have by the size you want
I hope this works for others...........