The exchange rate between the US dollar and the Nigerian naira fluctuates constantly. To determine how much a $200 Play Store gift card is in naira, one needs to check the current exchange rate.

Typically, the value can vary significantly from day to day. A reliable source such as a financial news website or a bank's exchange rate service should be used to get the most accurate figure. For example, if the exchange rate is 1 dollar = 410 naira, then a $200 gift card would be equivalent to 200 * 410 = 82,000 naira.
However, it's important to note that exchange rates are not static. They can be affected by various factors like economic conditions, central bank policies, and global market trends. So, it's advisable to double-check the rate just before making any conversions to ensure an up-to-date and accurate value for the $200 Play Store gift card in naira.