Best Buy has the best price on Zumba Fitness World Party (Xbox One) for $29.99 with FREE shipping.
In addition, Amazon also has Zumba Fitness World Party (Xbox One) for $29.99 (look under other buying options). It is temporarily unavailable, but will ship when it comes back in stock.
Pricing was current when the post was published, however Amazon prices change often, so please check before you buy.