-75.78% is the change from 351 to 85
Calculation steps:
[( 85 - 351 ) ÷ 351] x 100 = -75.78%
Formula
Percentage change = [(85 - 351) / 351] x 100
Subtract the new number by the original number
85 - 351 = -266
-266 ÷ 351 = -0.7578347578347578
-0.7578347578347578 x 100 = -75.78%