Verified Answer :

We have an equation: ?/340= 70/100

Cross multiply:
100?= 70340
⇒ ?= 70*340/100= 238

70% of 340 is 238~

70% of 340 is 238 

Convert your percentage into a decimal:
\(\frac{70}{100} = 0.7\)

Multiply your decimal by 340:
\(0.7 \times 340 = 238\)