The table below shows the mean metabolic rate of Djungarian hamsters (Phodopus sungorus) in two different physiological states across a range of ambient environmental temperatures.
| Ambient temperature (°C\degree\text{C}°C) | Mean metabolic rate of summer-acclimated hamsters (cm3 O2 g−1 h−1\text{cm}^3\ \text{O}_2\ \text{g}^{-1}\ \text{h}^{-1}cm3 O2 g−1 h−1) | Mean metabolic rate of winter-acclimated hamsters (cm3 O2 g−1 h−1\text{cm}^3\ \text{O}_2\ \text{g}^{-1}\ \text{h}^{-1}cm3 O2 g−1 h−1) |
|---|---|---|
| 5 | 8.24 | 6.12 |
| 15 | 5.48 | 4.36 |
| 25 | 3.15 | 2.54 |
| 30 | 2.12 | 1.88 |
| 35 | 2.85 | 2.45 |
Calculate the percentage decrease in the mean metabolic rate of winter-acclimated hamsters between 5 degC and 30 degC.
Use the equation:
percentage decrease=decrease in metabolic rateoriginal metabolic rate×100 \text{percentage decrease} = \frac{\text{decrease in metabolic rate}}{\text{original metabolic rate}} \times 100 percentage decrease=original metabolic ratedecrease in metabolic rate×100Give your answer to 3 significant figures.