Altering a cell value wih multiple 'If' conditions which require a seperate multiplier

Hi everyone

I am new to this forum and excel, so forgive me if this is a stupid / particularly simple question!

I am building a labour and wages tracking spreadsheet. It is nearly complete but I need assistance adding 1 formula which would calculate:

CELL NR7=Cell K7

However

If CELL K5= Saturday, then CELL NR7=CELLK7 * 1.5
and
If CELL K5= Sunday, then CELL NR7=CELLK7 * 2
and
If CELL K5= Bank Holiday, then CELL NR7=CELLK7 * 1.5
and
CELL K5= Christmas Day, then CELL NR7=CELLK7 * 2
and
If CELL K5= Good Friday, then CELL NR7=CELLK7 * 2

Hope someone can help!

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Try

in NR7
=K7*(IF(OR(K5="Saturday",K5="Bank Holiday"),1.5,IF(OR(K5="Sunday",K5="Christmas Day","K5="Good Friday"),2,1))

So
if K5 = Saturday or Bank Holiday then 1.5 * K7
if K5 = Sunday or Christmas Day or Good Friday then 2 * K7
otherwise 1 * K7