Sunland Inc., a real estate developing company, was accounting for its long-term contracts using the completed contract method prior to 2021. In 2021, it changed to the percentage-of-completion method. The company decided to use the same for income tax purposes. The tax rate enacted is 40%. Income before taxes under both the methods for the past three years appears below. 2019 2020 2021
Completed contract $480000 $318000 $156000
Percentage-of-completion 780000 399000 300000
Which of the following will be included in the journal entry made by Sunland to record the income effect?
a. A debit to Retained Earnings for $239400.
b. A credit to Retained Earnings for $228600.
c. A credit to Retained Earnings for $158400.
d. A debit to Retained Earnings for $158400.