The process of spreading the dough and then flipping it, is so as to prevent the parchment paper from sticking to the pizza during baking.
Macros are for base only - tomato sauce and /or any toppings excluded.
Metric kitchen scales are an inexpensive yet invaluable gadget to enable accurate measurement of ingredients. Store them upright in a cupboard or over your worktop and they'll only take up a tiny bit of space. Click
HERE for the ones I use.