From Calculators, go to Settings in the upper right-hand corner. Then, click the icon to expand the section for the costs you'd like to alter. Once the changes are complete, click Save in the bottom left of the screen.
From Calculators, go to Settings in the upper right-hand corner. Then, click the icon to expand the section for the costs you'd like to alter. Once the changes are complete, click Save in the bottom left of the screen.