-80.05% is the change from 426 to 85
Calculation steps:
[( 85 - 426 ) ÷ 426] x 100 = -80.05%
Formula
Percentage change = [(85 - 426) / 426] x 100
Subtract the new number by the original number
85 - 426 = -341
-341 ÷ 426 = -0.8004694835680751
-0.8004694835680751 x 100 = -80.05%