One Cent Discount!!!

Amazon Canada has discounted Living and Working in India by only a cent. I wonder why? Usually when an online book store offers a discount they are simply cutting their portion of retail margin-usually around 30 to 40%. Do they think that the book is worth so much in Canada that they are not willing to give any further discounts? Or is it some kind of marketing psychology that CDN$ 30.46 cents repels the buyers much more than CDN$ 30.45?
Will this minor difference in price have any major effect on the sales of the book in Canada? We occasionally encountered the bizarre field of numerology in India, and perhaps there is a certain resonance here?
Always thought 0.99p was the most successful price.
