78.9% is the change from 346 to 619
Calculation steps:
[( 619 - 346 ) ÷ 346] x 100 = 78.9%
Formula
Percentage change = [(619 - 346) / 346] x 100
Subtract the new number by the original number
619 - 346 = 273
273 ÷ 346 = 0.7890173410404624
0.7890173410404624 x 100 = 78.9%