-10.33% is the change from 978 to 877
Calculation steps:
[( 877 - 978 ) ÷ 978] x 100 = -10.33%
Formula
Percentage change = [(877 - 978) / 978] x 100
Subtract the new number by the original number
877 - 978 = -101
-101 ÷ 978 = -0.1032719836400818
-0.1032719836400818 x 100 = -10.33%