I suspect that Jinmin is trying to gain some insight on how English speakers use prepositions, Contrex.
The figure for spend per visit rose by over $100 from $786 to $890 over the period. Could I use “of” instead of “for” here? If not, why?
I'd say that for NaE, using 'of' would not work. But first we have to remove 'spend' which is unnatural to my ear and replace it with 'spending'.
The figure for [visitor] spending per visit rose by over $100 from $786 to $890 over the period.
With the change to 'spending', and the context as I envision it, it's my opinion that 'of' isn't possible.