Here are the steps for entering the complex formula shown in Fig. 182.
Step 1: Type =E7*(B1.
Step 2: Hit the F4 key once.
Step 3: Type +C7.
Step 4: Hit the F4 key 3 times. Your formula will now appear as shown in Fig. 188.
Step 5: Type the parentheses, an asterisk for multiplication, and E1, as shown in Fig. 189.
Step 6: Hit the F4 key twice to change E1 to a reference with the row locked, as shown in Fig. 190.

click to enlarge

click to enlarge

click to enlarge