Final answer:
To find the total change in the value of Saida's shares, subtract the total loss from the total gain. The value dropped by $38.75 and then rose by $22.50, resulting in a net loss of $16.25.
Step-by-step explanation:
The question involves problem solving with decimals related to the change in the value of stocks. To calculate the total change in the value of Saida's shares, we take two steps:
- First, we find the total loss when the value of each share dropped by $0.31. The total loss is 125 shares multiplied by $0.31, which equals $38.75.
- Then, we find the total gain when the value of each share rose by $0.18 the next day. The total gain is 125 shares multiplied by $0.18, which equals $22.50.
To find the total change in value, we subtract the total loss from the total gain: $22.50 (gain) - $38.75 (loss) = -$16.25. Therefore, the total change in the value of Saida's shares is a loss of $16.25.