Net income was $500,000 in 2016, $450,000 in 2017, and $525,000 in 2018. What is the percentage of change from (a) 2016 to 2017 and (b) 2017to 2018? is the change an increase or a decrease? (Enter negative amounts using either a negative sign preceding the number e.g. -45 or parentheses e.g. (45). Round percentage to 0 decimal places. e.g. 12%)