When calculating price increases, use the following formula

RRP = Regular Retail Price
X = percent increase in decimal form

(RRP * X) + RRP = Adjusted Price

Myself and other players have all seem to have found 27.5% increase works before the customers start to complain about the price being "too high". Using the formula provided above, the 27.5% price increase looks like the following:

(RRP * 0.275) + RRP = Adjusted Price

An example:

Flour

($2.49 * 0,275) + $2.49 = Adjusted Price

($2.49 * 0,275) = 0.64 + $2.49 = $3,17 for an adjusted price

The following link contains a list of all the items up to Level 20 that is listed within the game. I have not unlocked all of the items within the game, so there will be Retail Prices missing for items. As I continue to progress in the game unlocking the levels, I will update the excel file.

The Link provided you may edit as you see fit, it is best if you save a copy to edit to avoid any mistakes.

https://1drv.ms/x/s!AniRvFSg0jxE4UKGimVIYVAC9eCk?e=fctYOO