-99.05% is the change from 947 to 9
Calculation steps:
[( 9 - 947 ) ÷ 947] x 100 = -99.05%
Formula
Percentage change = [(9 - 947) / 947] x 100
Subtract the new number by the original number
9 - 947 = -938
-938 ÷ 947 = -0.9904963041182682
-0.9904963041182682 x 100 = -99.05%