-90.94% is the change from 938 to 85
Calculation steps:
[( 85 - 938 ) ÷ 938] x 100 = -90.94%
Formula
Percentage change = [(85 - 938) / 938] x 100
Subtract the new number by the original number
85 - 938 = -853
-853 ÷ 938 = -0.9093816631130064
-0.9093816631130064 x 100 = -90.94%