![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
Ms. Chen is a Chinese citizen, she obtained a reward of RMB 20,000 by the chance of a raffle in a store, the amount she received was net income excluding taxes and the store paid the tax liability of the reward. Calculate the IIT payable of the store for the reward.