97.67% is the change from 343 to 678
Calculation steps:
[( 678 - 343 ) ÷ 343] x 100 = 97.67%
Formula
Percentage change = [(678 - 343) / 343] x 100
Subtract the new number by the original number
678 - 343 = 335
335 ÷ 343 = 0.9766763848396501
0.9766763848396501 x 100 = 97.67%