82.34% is the change from 334 to 609
Calculation steps:
[( 609 - 334 ) ÷ 334] x 100 = 82.34%
Formula
Percentage change = [(609 - 334) / 334] x 100
Subtract the new number by the original number
609 - 334 = 275
275 ÷ 334 = 0.8233532934131736
0.8233532934131736 x 100 = 82.34%