Change in Standard Price of Finish Material

Hi All,

There are many Material which has loaded wrong Standard Price. After that many transaction has been performed e.g. 561, 521, 562 etc.

Now we came to know the price is wrong, I want to change the price. Can I do with mr21 or is there some alternate way ? Also let me know the replications, because many transaction has been performed on some of the materials.

Yusuf