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Answers and rating deltas for

How can I format the number for only showing 1 decimal place in php?

Author Votes Δ
Evan Mulawski 4 +1.28
Michael Irigoyen 0 -1.69
Teja Kantamneni 0 -0.49
nonopolarity 0 -0.58
Navdeep Singh 0 0.00
Last visited: Sep 14, 2014, 5:07:29 AM