76.38% is the change from 343 to 605
Calculation steps:
[( 605 - 343 ) ÷ 343] x 100 = 76.38%
Formula
Percentage change = [(605 - 343) / 343] x 100
Subtract the new number by the original number
605 - 343 = 262
262 ÷ 343 = 0.7638483965014577
0.7638483965014577 x 100 = 76.38%