Table:
0
A
B
C
1
2019
2018
2
Beginning balance as of January 1,
$1,210.0
$1,175.3
3
Additions
61.8
39.6
4
Accretion expense
81.6
83.6
5
Revisions in estimates (1)
56.8
(81.5)
6
Settlements
(26.1)
(7.0)
7
Balance as of December 31,
$1,384.1
$1,210.0

Questions and formulas:
Question: What is the percentage change in settlements between 2018 and 2019?
Formula: (B6-C6)/C6
Formula2: (B6-C6)/C6
Level: Calculation