BCWP = Budgect Cost Of Work performed (more commenly described as Earned Value and this is calculated very simply by using the percentage reported for work done for achieving either hours or value of the activity being progressed or measured.
Ie Task 1 has a budget of £10,000 and will take 100 manhours to complete so if you have claimed you are 50% complete then you have achievdd 50% of the cost and effort . £5000 & 50hrs respectively
ACWP = Actual Cost of Work performed which as it states the "actual cost used and the actual hours burned.
Ie if you have spent £4000 and burned 40 hours then that is what you report for ACWP (40%)
In this instance depending on your baseline data the project looks healthy
You have achieved more than you have expended , if the Planned Cost of Work Performed indicates you are ahead at this point , use S Curves to establish this.