First find the total number of striped nails: 20 nails - 6 nails - 8 nails = <<20-6-8=6>>6 nails
Then divide the number of blue nails by the number of total nails and multiply by 100% to express the answer as a percentage: 8 blue nails / 20 total nails * 100% = 40%
Then divide the number of striped nails by the number of total nails and multiply by 100% to express the answer as a percentage: 6 striped nails / 20 total nails * 100% = 30%
Then subtract the percentage of striped nails from the percentage of blue nails to find the difference: 40% - 30% = 10%
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