id:77485[Mastery: Echo of Light]bp:0:43.3531  1:125 
Mastery: 43.3531%

1) Flash Heal 				: 1,273,078 
Add to Echo of Light		: 1,273,078 * 0.433531 = 551,918.778418
2) Holy Word: Serenity		: 2,704,098
Add to Echo of Light		: 2,704,098 * 0.433531 = 1,172,310.310038
3) Holy World: Sanctify		: 933,030
Add to Echo of Light		: 933,030  * 0.433531 = 404,497.42893
4) Renew (initial)			: 102,374
Add to Echo of Light		: 102,374 * 0.433531 = 44,382.302594

Echo of Light Sum:  (1,273,078  +  2,704,098 + 933,030 + 102,374) * 0.433531 = 2,173,108.81998
Heal per Tick: 2,173,108.81998 / 3 (ticks) = 724,369.60666 (~724.368 actual tick)

But...
We healed with Echo of Light 5 times (5 ticks):
1) 574,742
2) 709,574
3) 724,368
4) 724,368
5) 724,368
Sum: 574,742 + 709,574 + 724,368 + 724,368 + 724,368 = 3,457,420
When actual sum was  2,173,108.81998, we healed for 3,457,420.

Why?
Echo of Light "instant" tick after aura update doesn't calculate summary in aura when tick. (sum decrease)
Only timer ticks are decreasing summary. (Ticks per 3 sec)
And we see that:

1) Flash Heal					: 1,273,078 
Add to Echo of Light			: 1,273,078 * 0.433531 = 551,918.778418
2) Holy Word: Serenity			: 2,704,098
Add to Echo of Light			: 2,704,098 * 0.433531 = 1,172,310.310038
Sum								: 551,918.778418 + 1,172,310.310038 = 1,724,229.088456
Ticks 							: 1,724,229.088456 / 3 (ticks) =  574,743.0294853333 (1st tick)

Sum	after tick (not working)	: Sum - tick : 1,724,229.088456 - 574,743.0294853333 = 1,149,486.058970667
Ticks remaining (not working)	: 1,149,486.058970667 / 3 (ticks) = 383,162.019656889

3) Holy World: Sanctify			: 933,030
Add to Echo of Light			: 933,030  * 0.433531 = 404,497.42893
Sum								: 1,724,229.088456 + 404,497.42893 = 2,128,726.517386
Ticks							: 2,128,726.517386 / 3 (ticks) = 709,575.5057953333 (2nd tick)
Sum (not working)				: 1,149,486.058970667 + 404,497.42893 = 1,553,983.487900667
Ticks (not working)				: 1,553,983.487900667 / 3 (ticks) = 517,994.495966889

Sum after tick (not working)	: Sum - tick : 1,553,983.487900667 - 517,994.495966889 = 1,035,988.991933778
Ticks remaining (not working)	: 1,035,988.991933778 / 3 (ticks) = 345,329.663977926

4) Renew (initial)				: 102,374
Add to Echo of Light			: 102,374 * 0.433531 = 44,382.302594
Sum								: 2,128,726.517386 + 44,382.302594 = 2,173,108.81998
Ticks							: 2,173,108.81998 / 3 (ticks) = 724,369.60666 (3rd tick)
Sum (not working)				: 1,035,988.991933778 + 44,382.302594 = 1,080,371.294527778
Ticks (not working)				: 1,080,371.294527778 / 3 (ticks) = 360,123.7648425927

Sum after tick (not working)	: Sum - tick : 1,080,371.294527778 - 360,123.7648425927 = 720,247.5296851853
Ticks remaining (not working)	: 720,247.5296851853 / 3 (ticks) = 240,082.5098950618

This is Not working:

	1) 574,743.0294853333
	2) 517,994.495966889
	3) 360,123.7648425927
	4) 360,123.7648425927
	5) 360,123.7648425927

	Sum: 574,743.0294853333 + 517,994.495966889 + 360,123.7648425927 + 360,123.7648425927 + 360,123.7648425927
	Sum: 2,173,108.81998
	Echo of Light Sum: (1,273,078  +  2,704,098 + 933,030 + 102,374) * 0.433531
	Echo of Light Sum: 2,173,108.81998