-65.32% is the change from 917 to 318
Calculation steps:
[( 318 - 917 ) ÷ 917] x 100 = -65.32%
Formula
Percentage change = [(318 - 917) / 917] x 100
Subtract the new number by the original number
318 - 917 = -599
-599 ÷ 917 = -0.653217011995638
-0.653217011995638 x 100 = -65.32%