69.5% is the change from 341 to 578
Calculation steps:
[( 578 - 341 ) ÷ 341] x 100 = 69.5%
Formula
Percentage change = [(578 - 341) / 341] x 100
Subtract the new number by the original number
578 - 341 = 237
237 ÷ 341 = 0.6950146627565983
0.6950146627565983 x 100 = 69.5%