Net income was $490,000 in 2020,$450,800 in 2021 , and $513,912 in 2022 . What is the percentage of change (a) from 2020 to 2021 , and (b) from 2021 to 2022 ? (Enter negative amounts using either a negative sign preceding the number e.g. -45 or parentheses e.g. (45). Round percentages to 1 decimal place, e.g. 12.3\%.)