-60.14% is the change from 853 to 340
Calculation steps:
[( 340 - 853 ) ÷ 853] x 100 = -60.14%
Formula
Percentage change = [(340 - 853) / 853] x 100
Subtract the new number by the original number
340 - 853 = -513
-513 ÷ 853 = -0.6014067995310668
-0.6014067995310668 x 100 = -60.14%