@peterg - Why? Explain your thinking.
I set it up as a ratio: 100 lbs. over 99% equal to X lbs. over 98%. I solved for X. It really is 98.98989899, so I rounded.
Ahhhh . . . . but the percentages are percents of different wholes, so that doesn't quite work.Try thinking of it this way. How many pounds does the "potato stuff" (not the water) weigh originally? Then go from there . . .
I have been think about this and I am confused. Are you asking how much the potato weighs originally and then to use that in a ratio?
Originally the bag of potatoes weighs 100 pounds, but 99% of that is water. So I'm asking how much solid "potato stuff" is there originally? Then try to figure it out from there.