The increase is 1164 - 934 = 230
So the question is:
230 is what percentage of 934?
"is" means -
"what" means x
"percentage" means /100
"of" means *
230 = x/100 * 934
230 = x * 9.34
x = 230/9.34
x = about 24.63
Answer: 1164 is a (roughly) 24.63% increase over 934.