98.28% is the change from 348 to 690
Calculation steps:
[( 690 - 348 ) ÷ 348] x 100 = 98.28%
Formula
Percentage change = [(690 - 348) / 348] x 100
Subtract the new number by the original number
690 - 348 = 342
342 ÷ 348 = 0.9827586206896551
0.9827586206896551 x 100 = 98.28%