89.74% is the change from 341 to 647
Calculation steps:
[( 647 - 341 ) ÷ 341] x 100 = 89.74%
Formula
Percentage change = [(647 - 341) / 341] x 100
Subtract the new number by the original number
647 - 341 = 306
306 ÷ 341 = 0.8973607038123167
0.8973607038123167 x 100 = 89.74%