-75.5% is the change from 347 to 85
Calculation steps:
[( 85 - 347 ) ÷ 347] x 100 = -75.5%
Formula
Percentage change = [(85 - 347) / 347] x 100
Subtract the new number by the original number
85 - 347 = -262
-262 ÷ 347 = -0.7550432276657061
-0.7550432276657061 x 100 = -75.5%