39.66% is the change from 643 to 898
Calculation steps:
[( 898 - 643 ) ÷ 643] x 100 = 39.66%
Formula
Percentage change = [(898 - 643) / 643] x 100
Subtract the new number by the original number
898 - 643 = 255
255 ÷ 643 = 0.3965785381026439
0.3965785381026439 x 100 = 39.66%