Table:
0
A
B
C
D
E
1
Year Ended May 31,
2
Percent Change
3
(Dollars in millions)
2019
Actual
Constant
2018
4
Provision for income taxes
$1,185
-87%
-86%
$8,837
5
Effective tax rate
9.7%
71.1%

Questions and formulas:
Question: How much was the average effective tax rate in 2018 and 2019?
Formula: (B5+E5) / 2
Formula2: (B5+E5) / 2
Level: Calculation
Question: By how much less was the provision for income taxes in 2019 compared to 2018?
Formula: E4 - B4 
Formula2: E4 - B4 
Level: Calculation
Question: How much was the total provision for income taxes across 2018 and 2019?
Formula: B4 + E4 
Formula2: B4 + E4 
Level: Calculation