-80.46% is the change from 435 to 85
Calculation steps:
[( 85 - 435 ) ÷ 435] x 100 = -80.46%
Formula
Percentage change = [(85 - 435) / 435] x 100
Subtract the new number by the original number
85 - 435 = -350
-350 ÷ 435 = -0.8045977011494253
-0.8045977011494253 x 100 = -80.46%