If X is 20% less than Y, then find the values of Y

According to question ,
X is 20% less than Y.
If Y = 100, X = 80

∴	Y - X	=	100 - 80
	Y		100

Required answer =	20	=	1
	100		5

	X	=	80
	X - Y		80 - 100

Required answer =	80	= - 4
	- 20

If X is 20% less than Y, then find the values of	Y – X	and	X
	Y		Y – X