-71.48% is the change from 298 to 85
Calculation steps:
[( 85 - 298 ) ÷ 298] x 100 = -71.48%
Formula
Percentage change = [(85 - 298) / 298] x 100
Subtract the new number by the original number
85 - 298 = -213
-213 ÷ 298 = -0.714765100671141
-0.714765100671141 x 100 = -71.48%