9514 1404 393
Answer:
 a.  55%
Step-by-step explanation:
The percentage increase is calculated from ...
 % increase = (amount of increase)/(original amount) × 100%
 = (2219 -1432)/1432 × 100% = 787/1432 × 100% ≈ 54.96%
The number of births increased by about 55% during those 10 years.