From the book:

“Entire Afghan is worked holding two strands of yarn together.”

-Dark Purple = 2.5 ounces(70 grams) 165 yards
-Purple = 10 ounces(280 grams) 655 yards
-Light Purple = 21 ounces(600 grams) 1,380 yards
-Black = 29 ounces(820 grams) 1,905 yards