-75.64% is the change from 349 to 85
Calculation steps:
[( 85 - 349 ) ÷ 349] x 100 = -75.64%
Formula
Percentage change = [(85 - 349) / 349] x 100
Subtract the new number by the original number
85 - 349 = -264
-264 ÷ 349 = -0.7564469914040115
-0.7564469914040115 x 100 = -75.64%