-86.64% is the change from 906 to 121
Calculation steps:
[( 121 - 906 ) ÷ 906] x 100 = -86.64%
Formula
Percentage change = [(121 - 906) / 906] x 100
Subtract the new number by the original number
121 - 906 = -785
-785 ÷ 906 = -0.8664459161147903
-0.8664459161147903 x 100 = -86.64%