-5.43% is the change from 810 to 766
Calculation steps:
[( 766 - 810 ) ÷ 810] x 100 = -5.43%
Formula
Percentage change = [(766 - 810) / 810] x 100
Subtract the new number by the original number
766 - 810 = -44
-44 ÷ 810 = -0.05432098765432099
-0.05432098765432099 x 100 = -5.43%