-89.39% is the change from 848 to 90
Calculation steps:
[( 90 - 848 ) ÷ 848] x 100 = -89.39%
Formula
Percentage change = [(90 - 848) / 848] x 100
Subtract the new number by the original number
90 - 848 = -758
-758 ÷ 848 = -0.8938679245283019
-0.8938679245283019 x 100 = -89.39%