-8.92% is the change from 706 to 643
Calculation steps:
[( 643 - 706 ) ÷ 706] x 100 = -8.92%
Formula
Percentage change = [(643 - 706) / 706] x 100
Subtract the new number by the original number
643 - 706 = -63
-63 ÷ 706 = -0.08923512747875353
-0.08923512747875353 x 100 = -8.92%