Right now, as I write this, Westfield London is at high tide.
Not "there's a sale on" in the vague way a window poster means it. A specific, checkable fact: 23 of the 40 shops we track are genuinely on sale today. Two weeks ago that number was 9. The card on the centre's page reads 58% and, for once, says the one thing Tide almost never says out loud: go now.
I want to walk through that card, because it's the clearest example I've had of the thing Tide was built to show.
The number is a fact, not a vibe
The big 58% is the Tide Score. It isn't a rating I invented or a mood. It's arithmetic you can check yourself: the share of the shops we track at this centre that are on sale today, 23 out of 40. The line right under it spells it out, "23 of 40 shops on sale", so the headline figure can never quietly disagree with the count beneath it.
That's deliberate. A score you can't verify is just another marketing banner, and the whole point of Tide is to be the opposite of that.
"Up from 9 two weeks ago" is the real story
Here's the part most people miss about sales: they build, they don't switch on.
The first day of a "sale" is often the worst day to go. Only the keenest brands have started and the discounts are shallow. A week or two later it spreads across the centre and the prices drop further. The calendar tells you it's "the summer sales." It doesn't tell you which day is actually worth the trip.
That's why the card doesn't just show today's number. It shows the direction: up from 9 two weeks ago. Nine shops became twenty-three. The little chart underneath draws the same story, a long flat stretch around a quarter of the centre, then a steep climb to where it sits now. You're not looking at a sale that's about to start. You're looking at one that has arrived.
"Go now" is the one time Tide tells you what to do
Look closely and you'll notice the card is almost entirely descriptive. It tells you what's happening, which shops just arrived, how the centre is trending, and then trusts you to decide.
There's exactly one exception, and it's the amber line: 17 of your shops on sale: Accessorize, AllSaints, Boux Avenue, and 14 more. When enough of the centre is discounting at once, and enough of it is shops you care about, the card stops describing and makes a call: this is the peak, go now.
I kept that prescription rare on purpose. If everything shouts "GO," nothing means anything. "Go now" only appears at high tide, so when you see it, it's earned.
How you'd have known
Play it back. Two weeks ago, Westfield London was sitting at 9 of 40, quiet. If you'd driven over then on the strength of a sale sign you spotted in one window, you'd have walked the floors and found a few token rails while everything you wanted stayed full price. The wasted Saturday I built Tide to kill.
Today the same centre reads 58% and names more than sixteen shops you follow. Same place. Different day. That gap, between the day the calendar says "sale" and the day the sale is actually worth your petrol and your weekend, is the entire reason Tide exists.
No prediction. No promise about tomorrow. Just an honest read of what's happening right now, and the one question worth answering before you set off: is it worth going today?
Today, for Westfield London, it is.