-3.2% is the change from 906 to 877
Calculation steps:
[( 877 - 906 ) ÷ 906] x 100 = -3.2%
Formula
Percentage change = [(877 - 906) / 906] x 100
Subtract the new number by the original number
877 - 906 = -29
-29 ÷ 906 = -0.03200883002207505
-0.03200883002207505 x 100 = -3.2%