38.85% is the change from 646 to 897
Calculation steps:
[( 897 - 646 ) ÷ 646] x 100 = 38.85%
Formula
Percentage change = [(897 - 646) / 646] x 100
Subtract the new number by the original number
897 - 646 = 251
251 ÷ 646 = 0.38854489164086686
0.38854489164086686 x 100 = 38.85%