想問margin percentage 同mark up percentage 有咩關係
我知markup 同margin果2條formula
但如果佢俾個magrin/markup既percentage我就唔識計= =
例如書入面有一題係咁
i) If an item costs $20 and is sold for $25, what si the (a) mark-up and (b) margin, expressed as percentages?
(ii) If the mark-up on a unit is 33 1/3 per cent, what is the margin?
(iii) If the margin is 16 2/3 per cent, what is the mark-up?
我識計i 但唔識計 ii同iii
有冇人可以教一教返我, thanks