Table:
0
A
B
C
D
E
F
1
Date
Type
Category
Model
Amount
Total
2
1/1/2007
BMW
Compact
BMW 3-Series
142490.0
23523.0
3
1/1/2008
BMW
Compact
BMW 3-Series
112464.0
23420.9
4
1/1/2009
BMW
Compact
BMW 3-Series
90960.0
2342.2
5
1/1/2010
BMW
Compact
BMW 3-Series
100910.0
23423.2

Questions and formulas:
Question: total amount for each type
Formula: SUMMARIZE(B1,SUMX(E1))
Formula2: SUMMARIZE(B2:B5,SUMX(E2:E5))
Level: easy
Question: total amount over time
Formula: SUMMARIZE(A1,SUMX(E1))
Formula2: SUMMARIZE(A2:A5,SUMX(E2:E5))
Level: easy