65.3% is the change from 389 to 643
Calculation steps:
[( 643 - 389 ) ÷ 389] x 100 = 65.3%
Formula
Percentage change = [(643 - 389) / 389] x 100
Subtract the new number by the original number
643 - 389 = 254
254 ÷ 389 = 0.6529562982005142
0.6529562982005142 x 100 = 65.3%