| $ million | 2017 | 2016 | Change | Constant currency change |
|---|---|---|---|---|
| Revenue | 1,936 | 1,950 | -1% | +1% |
| Gross profit | 967 | 986 | -2% | +0% |
| Core operating profit1 | 386 | 419 | -8% | -4% |
| EBITDA2 | 488 | 473 | +3% | +7% |
| Core EBITDA3 | 468 | 493 | -5% | -1% |
| Profit attributable to shareholders | -843 | 155 | -644% | -636% |
| Core profit attributable to shareholders4 | 252 | 276 | -9% | -5% |
| Basic earnings per share (cents) | -351.3 | 66.6 | -628% | -620% |
| Core basic earnings per share (cents)4 | 105.0 | 118.5 | -11% | -8% |
| Dividend per share (cents) | 34.0 | 33.0 | +1.0% | - |
| Net cash flow from operating activities | 443 | 293 | +51% | - |
.