HP 10bII+ Financial manual Vv\¨Dgª, YV4, Using the M Register

Example 4

Calculate the percent change between 55 and 32 and store it as a constant. Then calculate the percent change between 50 and 32, and 45 and 32.

Table 4-4 Calculating percent change

KeysDisplay Description

VV\¨DGª	32.00	Stores % change 32 as constant.
4	-41.82	Calculates the % change
		between 55 and 32.
V:4	-36.00	Calculates the % change
		between 50 and 32.
YV4	-28.89	Calculates the % change
		between 45 and 32.

All of the other two-number functions on the calculator may be used with ªin the same

manner as shown in example 4. For a complete list of two-number functions, refer to the section titled, Two-Number Functions in chapter 2.

Using the M Register

The s, p, and mkeys perform memory operations on a single storage register, called the M register. In most cases, it is unnecessary to clear the M register, since s replaces the previous contents. However, you can clear the M register by pressing :s.

To add a series of numbers to the M register, use sto store the first number and mto add subsequent numbers. To subtract the displayed number from the number in the M register,

press yfollowed by m.

Table 4-5 Keys for performing memory operations

KeysDescription

s	Stores displayed number in the M register.
p	Recalls number from the M register.
m	Adds displayed number to the M register.

Number Storage and Storage Register Arithmetic 51