-62.63% is the change from 851 to 318
Calculation steps:
[( 318 - 851 ) ÷ 851] x 100 = -62.63%
Formula
Percentage change = [(318 - 851) / 851] x 100
Subtract the new number by the original number
318 - 851 = -533
-533 ÷ 851 = -0.6263219741480611
-0.6263219741480611 x 100 = -62.63%