The correct spelling is repercussion and it means an action or effect given or exerted in return, i.e. a consequence of an action. For example, if you steal from a company, the repercussions could be severe.
you were most likely breaking the rules on the server and the repurcussion of this could be a permenent ban.
Market price in the share market is determined by various factors viz., ups and downs of share prices of various cos, any Government decision, international event having repurcussion on domestic market,speculative buying, hedging,rumours and so on. There are many ways for market participants to estimate the price of a stock. Methods usually fall into two types: fundamentals and technical analysis. However the price of a share at any moment of trading is the price transacted, which is the outcome of consensus between buyers and sellers each acting on their own beliefs.