7.71% is the change from 597 to 643
Calculation steps:
[( 643 - 597 ) ÷ 597] x 100 = 7.71%
Formula
Percentage change = [(643 - 597) / 597] x 100
Subtract the new number by the original number
643 - 597 = 46
46 ÷ 597 = 0.07705192629815745
0.07705192629815745 x 100 = 7.71%