-8.07% is the change from 892 to 820
Calculation steps:
[( 820 - 892 ) ÷ 892] x 100 = -8.07%
Formula
Percentage change = [(820 - 892) / 892] x 100
Subtract the new number by the original number
820 - 892 = -72
-72 ÷ 892 = -0.08071748878923767
-0.08071748878923767 x 100 = -8.07%