-66.42% is the change from 947 to 318
Calculation steps:
[( 318 - 947 ) ÷ 947] x 100 = -66.42%
Formula
Percentage change = [(318 - 947) / 947] x 100
Subtract the new number by the original number
318 - 947 = -629
-629 ÷ 947 = -0.6642027455121436
-0.6642027455121436 x 100 = -66.42%