Xiao Wang goes shopping, as stipulated in the supermarket (1), and there is no discount for less than 100 yuan (2). 100-300 * * (3) 10% discount, 20% discount above 300 yuan.

Wang Mai Jr. paid 88 yuan and 252 yuan twice.

There is no discount for the first time in 88 yuan.

If Xiao Wang pays a 10% discount for the second time,

What he actually spent was: 252/0.9 = 280 yuan,

So I spent * * * twice: 88+280 = 368 yuan.

After 20% discount, the actual price is only 368 * 0.8 = 294.4 yuan.

If Xiao Wang pays the second price at a 20% discount,

The amount he actually spent was: 252/0.8 = 3 15 yuan.

So I spent * * * twice: 88+3 15 = 403 yuan.

After 20% discount, the actual price is only 403 * 0.8 = 322.4 yuan.