Acrylic sheet price went up ?

[VINH_XUAN]

I hope this question posted on the right place.
Last year, most local stores sold a sq ft of 1/4" thick clear acrylic sheet for $4.50 average. Yesterday I stopped by to get some and surprised by the price of $7.30.
Was the manufacture or the local store increase the price ?

[scotmc]

The price of a acrylic. plastics, ect. have all gone up do to the increase of oil.

[VINH_XUAN]

Thanks scotmc. I understand the hiking in prices due to oil crisis but an increase of 62% in a yr is way out of my expectation.