78.65% is the change from 342 to 611
Calculation steps:
[( 611 - 342 ) ÷ 342] x 100 = 78.65%
Formula
Percentage change = [(611 - 342) / 342] x 100
Subtract the new number by the original number
611 - 342 = 269
269 ÷ 342 = 0.7865497076023392
0.7865497076023392 x 100 = 78.65%