-31.47% is the change from 464 to 318
Calculation steps:
[( 318 - 464 ) ÷ 464] x 100 = -31.47%
Formula
Percentage change = [(318 - 464) / 464] x 100
Subtract the new number by the original number
318 - 464 = -146
-146 ÷ 464 = -0.3146551724137931
-0.3146551724137931 x 100 = -31.47%