The percent of change rounded to the nearest tenth is 10.5 %
Given that Mack shot an 86 on the golf course on Monday
Then, on Friday he shot a 95
To find: percent of change
Percent increase and percent decrease are measures of percent change, which is the extent to which a variable gains or loses value.
Percentage change equals the change in value divided by the original value, multiplied by 100.
[tex]\text {percentage change }=\frac{\text { final value - original value }}{\text { original value }} \times 100[/tex]
Here original value = 86 and final value = 95
[tex]\begin{array}{l}{\text { percentage change }=\frac{95-86}{86} \times 100=\frac{9}{86} \times 100} \\\\ {\text { percentage change }=10.465}\end{array}[/tex]
A positive result indicates increase in percentage
On rounding to nearest tenth we get, percent of change = 10.5 %
Thus the percent increase is 10.5 %