Help please!!
I trying to increase a quilt block from 8.5 inches to twelve inches. After doing some searching I figured thought I would have to increase the 8.5 block by 140% in order to get a 12 inch block. Thought I was so smart! Did the necessary calculations to increase all the block pieces. Sewed the block together and it came out to 14 inches not the 12 inches I was looking for. Is there a calculation for increasing block sizes that I don't know about?? I'm so mathematically challenged! Can anyone help?