-75.07% is the change from 341 to 85
Calculation steps:
[( 85 - 341 ) ÷ 341] x 100 = -75.07%
Formula
Percentage change = [(85 - 341) / 341] x 100
Subtract the new number by the original number
85 - 341 = -256
-256 ÷ 341 = -0.750733137829912
-0.750733137829912 x 100 = -75.07%