Does it increase, decrease or no change

The mode would be 9.

Step-by-step explanation:

The mode is what occurs the most, and even if the 2 was added, 9 happens 5 times, making 9 the mode

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000