38.64% is the change from 647 to 897
Calculation steps:
[( 897 - 647 ) ÷ 647] x 100 = 38.64%
Formula
Percentage change = [(897 - 647) / 647] x 100
Subtract the new number by the original number
897 - 647 = 250
250 ÷ 647 = 0.38639876352395675
0.38639876352395675 x 100 = 38.64%