-3.67% is the change from 844 to 813
Calculation steps:
[( 813 - 844 ) ÷ 844] x 100 = -3.67%
Formula
Percentage change = [(813 - 844) / 844] x 100
Subtract the new number by the original number
813 - 844 = -31
-31 ÷ 844 = -0.03672985781990521
-0.03672985781990521 x 100 = -3.67%