Unemployment fell by 14,000 between October and December to 2.5 million, official figures showed today.
The number of people claiming jobseeker's allowance last month fell by 12,500 to 1.54 million, said the Office for National Statistics.
Average earnings increased by 1.4% in the year to December, 0.1% down on the previous month.
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The Metropolitan Police Federation, which set up the official JustGiving site, said it felt a "suitable amount" had been collected.
There is no evidence the Westminster attacker Khalid Masood was associated with so-called Islamic State or al Qaeda, the Met Police said.
Janet Ajao said in a statement: "I do not condone his actions nor support the beliefs he held that led to him committing this atrocity."