Answer:
Percent error = 3.5%
Step-by-step explanation:
Percent error is a way to measure the accuracy of your experiment (How close is the measurement regard to theoretical value). The formula is:
|Measure - Theoretical| / Theoretical * 100
Where measure was 96.5°C and theoretical 100.0°C
|96.5°C - 100°C| / 100°C * 100
Percent error = 3.5%