What are the cost deviation and cost performance indicators

if the actual cost of work done (WP) = 400 and the budgeted cost of planned value plan work PV (WS) = 325. +25; 0.875+25; 1.077-50; 0.875+50; 1.07722. After the project is completed, the cumulative PI will behave relatively stable. 5% to 10% 15% to 2% 25% to 35% 50% to 75% 23.