Percentage increase in income for company X from 2014 to 2015 = (42 – 40)/40 × 100 = 5% Percentage increase in income for company X from 2015 to 2016 = (45 – 42)/42 × 100 = 7.14% Percentage increase in income for company X from 2016 to 2017 = (50 – 45)/45 × 100 = 11.11% Percentage increase in income for company Y from 2014 to 2015 = (40 – 32)/32 × 100 = 25% Percentage increase in income for company Y from 2015 to 2016 = (45 – 40)/40 × 100 = 12.5% Maximum percentage occurs for company Y for the period of 201