Please I need the step by sptep calculation for this

Selected data (in thousands) from the statement of income of Canarie Inc. are shown below. Using vertical analysis, calculate the percentage of the base amount for each year. (Round answers to 1 decimal place, e.g. 5.2%.) 2021 Percentage 2020 Percentage Sales Cost of goods sold Gross profit Operating expenses Income before income tax Income tax expense Net income Amount $1,926 1,617 309 219 90 18 $72 Amount $2,058 1,663 395 210 185 37 $148