objective c - NSString to float value incorrect -

i have nsstring converting float value , result logged this

2,146.952 float 2.000000 

the comma seems cause float value rounded down, if use doublevalue] same.

is there way 2146.952?

try,

1) remove comma string

nsstring * str = [str stringbyreplacingoccurencesofstring:@"," withstring:@""]; 

2) retrieve float value string

float f = [str floatvalue];