-66.74% is the change from 956 to 318
Calculation steps:
[( 318 - 956 ) ÷ 956] x 100 = -66.74%
Formula
Percentage change = [(318 - 956) / 956] x 100
Subtract the new number by the original number
318 - 956 = -638
-638 ÷ 956 = -0.6673640167364017
-0.6673640167364017 x 100 = -66.74%