-15.2% is the change from 763 to 647
Calculation steps:
[( 647 - 763 ) ÷ 763] x 100 = -15.2%
Formula
Percentage change = [(647 - 763) / 763] x 100
Subtract the new number by the original number
647 - 763 = -116
-116 ÷ 763 = -0.15203145478374835
-0.15203145478374835 x 100 = -15.2%