Temperature fluctuates according to the season. In general winter will reduce temperature by 1 and summer will increase it by 1. In midwinter and midsummer temperature will decrease/increase by an additional scale. Because of these fluctuations temperature does not consistently cause its income loss effects of 5% per scale. Over a period of 12 months, you will suffer the following income loss if you are at your preferred tempature.

Nation preference	3	2	1	0	1	2	3
Base income loss	1.67%	2.92%	3.33%	3.33%	3.33%	2.92%	1.67%

These seasonal changes also causes the amount of income you lose per scale taken to be inconsistent. You can find the approximate amount of income you lose by inspecting the table below. If you choose the column that corresponds to your nation's heat preference you can see the income you lose from going up or down a single scale. For example, a nation with a 1 preference going from 1 to 2 will lose about 2.08% income, and an additional 2.92% for going from 2 to 3

		Nation Preference
		3	2	1	0	1	2	3
Scale	3	Base	-1.25%	-2.92%	-3.75%	-4.50%	-3.75%	-3.75%
	2	-3.75%	Base	-2.08%	-3.75%	-4.58%	-4.58%	-4.58%
	1	-4.58%	-2.92%	Base	-2.50%	-4.17%	-5.00%	-5.00%
	0	-5.00%	-4.17%	-2.50%	Base	-2.50%	-4.17%	-5.00%
	1	-5.00%	-5.00%	-4.17%	-2.50%	Base	-2.92%	-4.58%
	2	-4.58%	-4.58%	-4.58%	-3.75%	-2.08%	Base	-3.75%
	3	-3.75%	-3.75%	-4.50%	-3.75%	-2.92%	-1.25%	Base

Note that because scales are multiplicative, not additive, this table is just an approximation(See the FAQ below for more details)