-15.06% is the change from 757 to 643
Calculation steps:
[( 643 - 757 ) ÷ 757] x 100 = -15.06%
Formula
Percentage change = [(643 - 757) / 757] x 100
Subtract the new number by the original number
643 - 757 = -114
-114 ÷ 757 = -0.15059445178335534
-0.15059445178335534 x 100 = -15.06%