I would like to give some feedback about ...

From: https://py.checkio.org/mission/friendly-number/solve/

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Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36

As far as I can see 1024000000/1024/1024 = 976.5625 which rounds to 977 (even if we use base 1024 fractions), which conflicts with the assertion that the answer should be 976MiB