You should find the details you want under "Sugar Guides"  on the home page www.howmuchsugar.com

grams-per-100g  IS the percentage. Both for sugar (except yogurt) and polyunsaturated fat, less than 2% is a safe general guide. For yogurt it's 5%

JohnN

In the Members Section there is a guide to breads: http://www.howmuchsugar.com/Resources/Documents/2014%20Fructose%20Free%20Guide%20AUS%20Breads.pdf Download the pdf  file.

To answer your question (a) check the NIP  on the bred packet and the weight of the loaf is also on the pack. Multiply them together to get the grams of sugar in the loaf and divided by 2  to give an approximation to the fructose content.

Or just stick to "less than 2% " :-)

My hunch is that there's not much sugar in breads, except fruit loaf, which get the fructose from the fruit.

JohnN