89.21% is the change from 343 to 649
Calculation steps:
[( 649 - 343 ) ÷ 343] x 100 = 89.21%
Formula
Percentage change = [(649 - 343) / 343] x 100
Subtract the new number by the original number
649 - 343 = 306
306 ÷ 343 = 0.892128279883382
0.892128279883382 x 100 = 89.21%
Example