Mary Jones Just Received the Following Statement

Short Answer

Mary Jones just received the following statement. Can you help her calculate (A)the average daily balance and (B)the finance charge, if finance charge is 1 ½% on the average daily balance?
$\begin{array}{l}29 \text { Day Billing Cycle }\\\begin{array} { l l r } 3 / 17 & \text { Prev Balance } & \$ 2,000 \\3 / 28 & \text { Payment } & \$ 100 \\4 / 3 & \text { Charge } & \$ 300\end{array}\end{array}$