From what I can find on Google Scholar it looks like there is a pass-through effect of approximately 1/3 the amount of a Value Added Tax - with the exception of food production, which trends higher - going to the consumer. In other words, instituting a VAT results in about 1/3 of that VAT showing up as extra costs to the consumer.
Please assess the accuracy of the above estimate with sources you have found.
"My findings suggest that taxes levied on food are completely shifted to consumer prices, while there is little spill-over effects to most other goods."
"Since the effect on prices was limited, we conclude that the burden of the VAT tax was indeed shared between producers and consumers."
"The Price and Welfare Effects of The Value-Added Tax: Evidence from Mexico", p27: Conclusions
General reading from:
"Estimating VAT Pass Through" By Ms. Dora Benedek, Ruud A. de Mooij, Mr. Philippe Wingender