Change price according to quantity

[wimogas]

Hello,

 

Is there an easy way to set a price for specific quantities without configuring it with attributes? 

 

ie.

 

500 units - 1€

1000 units - 0,6€

2000 units - 0,5€

 

 

I just don't want to use "impact on price", too much math involved...

 

Thanks,

 

G