Answer:
The cumulative effect of this accounting change on beginning retained earnings is $1,830,000.
Step-by-step explanation:
Acording to the data we have the following:
increase in beginning inventory= $3,050,000
income tax rate=40%
Hence, to calculate the the cumulative effect we have to use the following formula:
cumulative effect = increase in beginning inventory *(1- tax rate)
=$3,050,000*(1-0.40)
=$1,830,000.
The cumulative effect of this accounting change on beginning retained earnings is $1,830,000.