-63.89% is the change from 853 to 308
Calculation steps:
[( 308 - 853 ) ÷ 853] x 100 = -63.89%
Formula
Percentage change = [(308 - 853) / 853] x 100
Subtract the new number by the original number
308 - 853 = -545
-545 ÷ 853 = -0.6389214536928488
-0.6389214536928488 x 100 = -63.89%