93.59% is the change from 343 to 664
Calculation steps:
[( 664 - 343 ) ÷ 343] x 100 = 93.59%
Formula
Percentage change = [(664 - 343) / 343] x 100
Subtract the new number by the original number
664 - 343 = 321
321 ÷ 343 = 0.9358600583090378
0.9358600583090378 x 100 = 93.59%