there is a simpler way to convert hba1c% from the tenths of a percent
hba1c 7% = 53 using the minus 2 rule
and then
hba1c 7.5% = 53 PLUS 5 = 58
7.4% = 53 PLUS 4 = 57 etc
for percentages CONTAINING .6, .7, .8 and .9 you have to add 1
so 7.7% =53 PLUS 7 +1=61
7.8% = 53 PLUS 8 +1 = 62