Cloud solution architect Offer evaluation

Hi, I would like to know how Microsoft pay structure works. In the offer letter it says core priority based incentive target is 30% and overall range is 0-90%? Is 30% achievable as it is target or what it the target bonus we can expect if meet the expectations. L64: Base 150K Stocks: 120k Cbi: 30% I don’t understand this metric. YOE: 7 (3 years at AWS) What do think of the salary?? #Microsoft