95.29% is the change from 340 to 664
Calculation steps:
[( 664 - 340 ) ÷ 340] x 100 = 95.29%
Formula
Percentage change = [(664 - 340) / 340] x 100
Subtract the new number by the original number
664 - 340 = 324
324 ÷ 340 = 0.9529411764705882
0.9529411764705882 x 100 = 95.29%