Short rows are generally not a decrease. It's a way to add more rows to a section of knitting. When you work them in the round, you turn your work and purl back, as you would on straight needles, but just for the short-row section.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry