DCCT-% 8.8 - that's your hba1c according to diabetes control and complications study units. The target is to have it >6.5%.
IFF mmol/mol 73 - that's your hba1c according to international federation of clinical chemistry units. The target is to have it under 48
mmol/L 11.5 - that's your blood sugar
A hba1c of 78 equates to an average blood sugar of 11.5.
While the reduction in your levels from 98 is good, they still seem rather high and there's some way to go.
The DCCT and the IFCC figures are the same thing, they are just telling you your hba1c in different formats.