Herbalife beat Wall Street estimates Wednesday to surge as much as 7 percent in after-hours trading — even as it reported a big decline in both revenues and net income.

The controversial LA-based company said net income fell 31 percent during the second quarter, coming in at $82.9 million, down from $119.5 million during the year-earlier period.

Excluding legal costs, it earned $1.24 per diluted share, down from $1.55 in the prior year’s second quarter.

Net sales of the global diet-shake seller, run by Chief Executive Michael Johnson, slid 11 percent to $1.2 billion, largely due to the strength of the dollar in its international business.

Wall Street analysts had expected earnings of $1.11 per share on sales of $1.14 billion.

North American sales fell 8 percent, but China is booming, with net sales up 39 percent in the quarter, and the company said earnings would do better than expected for 2015.