Net income was $470,000...

Net income was $470,000 in 2018,$455,900 in 2019 , and $487,813 in 2020 . What is the percentage of change from (a) 2018 to 2019, and (b) from 2019 to 2020? Is the change an increase or a decrease? (If amount and percentage are a decrease show the numbers as negative, e.g. 55,000,20% or (55,000), (20%). Round percentages to 0 decimal places, e. g. 12\%.)