-4.38% is the change from 821 to 785
Calculation steps:
[( 785 - 821 ) ÷ 821] x 100 = -4.38%
Formula
Percentage change = [(785 - 821) / 821] x 100
Subtract the new number by the original number
785 - 821 = -36
-36 ÷ 821 = -0.0438489646772229
-0.0438489646772229 x 100 = -4.38%