-78.09% is the change from 388 to 85
Calculation steps:
[( 85 - 388 ) ÷ 388] x 100 = -78.09%
Formula
Percentage change = [(85 - 388) / 388] x 100
Subtract the new number by the original number
85 - 388 = -303
-303 ÷ 388 = -0.7809278350515464
-0.7809278350515464 x 100 = -78.09%