-6.37% is the change from 816 to 764
Calculation steps:
[( 764 - 816 ) ÷ 816] x 100 = -6.37%
Formula
Percentage change = [(764 - 816) / 816] x 100
Subtract the new number by the original number
764 - 816 = -52
-52 ÷ 816 = -0.06372549019607843
-0.06372549019607843 x 100 = -6.37%