I could not get the slope and intercept that I expected:
What I get:
<colgroup><col><col></colgroup><tbody>
=INTERCEPT(A2:A113,B2:B113)
497.262
=SLOPE(A2:A113,B2:B113)
-0.01124
</tbody>
What I expect:
intercept ~ 12.55
slope ~ -0.0102
Am I missing something...