Question about bitcoin mining difficulty adjustment formula in book mastering bitcoin 3rd edtion

In book "Mastering bitcoin" 3rd, page 278, There is a formula about bitcoin mining difficulty adjustment formula as below:

        New Target = Old Target * (20,160 minutes / Actual Time of Last 2015 Blocks)

I think it should be:

        New Target = Old Target * (Actual Time of Last 2015 Blocks / 20,160 minutes)

Anyone has comments about it? Thanks.



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