-3.31% is the change from 907 to 877
Calculation steps:
[( 877 - 907 ) ÷ 907] x 100 = -3.31%
Formula
Percentage change = [(877 - 907) / 907] x 100
Subtract the new number by the original number
877 - 907 = -30
-30 ÷ 907 = -0.03307607497243661
-0.03307607497243661 x 100 = -3.31%