-74.24% is the change from 330 to 85
Calculation steps:
[( 85 - 330 ) ÷ 330] x 100 = -74.24%
Formula
Percentage change = [(85 - 330) / 330] x 100
Subtract the new number by the original number
85 - 330 = -245
-245 ÷ 330 = -0.7424242424242424
-0.7424242424242424 x 100 = -74.24%