Answer:
Teachers increase = 300 %
Step-by-step explanation:
Method to increase or decrease:
Change= Actual - Original
Actual= 48
Original= 12
Change= 48-12= 36
[tex]P= \frac{Change}{Original} * 100[/tex]
[tex]P= \frac{36}{12} * 100[/tex]%
[tex]P= 3 * 100[/tex]%
[tex]P= 300[/tex]%
