其它
Think Store is selling boba plushies at $100$ dollars each. The plushies are so in demand that Think Store decides to increase the price of the plushies by $30\textbackslash\%$, but if a students buy $2$ boba plushies at the same time, there is a $40\textbackslash\%$ discount for the second plushie. How much does it costs to buy $2$ plushies? 
Overseas Competition->Knowledge Point->Calculation Modules->Percentage Calculation
$100\times (1+30\textbackslash\%)=130$  $130+130\times (1-40\textbackslash\%)=130+78=208$ 