-3.81% is the change from 813 to 782
Calculation steps:
[( 782 - 813 ) ÷ 813] x 100 = -3.81%
Formula
Percentage change = [(782 - 813) / 813] x 100
Subtract the new number by the original number
782 - 813 = -31
-31 ÷ 813 = -0.038130381303813035
-0.038130381303813035 x 100 = -3.81%