-86.6% is the change from 903 to 121
Calculation steps:
[( 121 - 903 ) ÷ 903] x 100 = -86.6%
Formula
Percentage change = [(121 - 903) / 903] x 100
Subtract the new number by the original number
121 - 903 = -782
-782 ÷ 903 = -0.8660022148394242
-0.8660022148394242 x 100 = -86.6%