-64.13% is the change from 853 to 306
Calculation steps:
[( 306 - 853 ) ÷ 853] x 100 = -64.13%
Formula
Percentage change = [(306 - 853) / 853] x 100
Subtract the new number by the original number
306 - 853 = -547
-547 ÷ 853 = -0.6412661195779601
-0.6412661195779601 x 100 = -64.13%