Soulver includes a set of percentage phrases for all scenarios you're likely to run into

Getting percentages of a number

10% of 200 | 20

20 is what % of 200 | 10%

20 is 10% of what | 200

Getting percentages off a number

200 - 10% | 180

10% off 200 | 180

180 is what % off 200 | 10%

180 is 10% off what | 200

Getting percentages on a number

200 + 10% | 220

10% on 200 | 220

220 is what % on 200 | 10%

220 is 10% on what | 200

Percentage change from one number to another

Fractions and Multipliers

The percentage in any of the aforementioned functions can also be replaced with a fraction:

2/3 of 600 | 400

50 is 1/5 of what | 250

You can also use "x", "multiple" or "multiplier" instead of percentage:

50 as x of 5 | 10x

2.5 as multiplier of 1 | 2.5x