the discount isn't quite as big as I thought it would be
It's 20%
here, take 20% off 1st, then take your 35% off of that.
25 - 20% = 20 ( discount of 5 )
20 - 35% = 13 ( discount of 7 )
final price is 13 credits
Here, Take your 35% level discount, then take 20% off of that.
25 -35% = 16.25 ( discount of 8.75 )
16.25 - 20% = 13 ( discount of 3.25 )
final price is 13
it doesn't matter if you take the 20% 1st, or the 35% 1st.
the two discounts combined still give the same Net result.
combined it is a 48% discount.