TheStreet's Jim Cramer says right now is an opportunity to buy shares of Rite Aid (RAD) because of the major turn going on with an earnings per share revival that stems from sales increases. Rite Aid had a setback on Thursday because of timing issues on the their deal with McKesson (MCK) involving generics. Cramer believes the issue with McKesson will be resolved and that it will not impact earnings results in the second half of 2014. Cramer says Rite Aid’s guidance cut is causing people to panick and sell. Cramer believes the key numbers to focus on were same stores sales figures and pharmacy sales, both of which were good. The issue is the timing. Cramer says investors should buy shares of Rite Aid on any weakness.