ios - How to add percent sign in string format? -


this question has answer here:

i want string "99.99%" double,and used format this:

let rate = 99.99999 let str = string(format: "%.2f%", rate) // output 99.99

and \% not allowed. how add percent sign in string format, please me!

write 2 time %: 

rate = 99.99 let str = string(format: "%.2f%%", rate)

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