-7.07% is the change from 947 to 880
Calculation steps:
[( 880 - 947 ) ÷ 947] x 100 = -7.07%
Formula
Percentage change = [(880 - 947) / 947] x 100
Subtract the new number by the original number
880 - 947 = -67
-67 ÷ 947 = -0.07074973600844774
-0.07074973600844774 x 100 = -7.07%