What is the price difference between 50kA & 70kA ratings for LV MCCBs?

What is the price difference between 50kA & 70kA ratings for LV MCCBs?

MCCB price versus KA (short circuit rating)
What is the price difference between 50kA & 70kA ratings for LV MCCBs?
If possible, please introduce useful sites in this regard, too.
Thanks in advance.

Nearly Rs.15000 to 18000