Below are 2 years of quarterly data for dev corp. Calculate dev corps bookings to revenue ratio for Q4 of this year?

Revenue unearned revenue

Last year Q1 560.012 572.201

Last year Q2 750.667 621.333

Last year Q3 1047.111 774.222

Last year Q4 678.074 696.148

This year Q1 617.049 629.099

This year Q2 825.700 683.399

This year Q3 1151.800 851.599

This year Q4 815.866 795.733