-87.21% is the change from 899 to 115
Calculation steps:
[( 115 - 899 ) ÷ 899] x 100 = -87.21%
Formula
Percentage change = [(115 - 899) / 899] x 100
Subtract the new number by the original number
115 - 899 = -784
-784 ÷ 899 = -0.8720800889877642
-0.8720800889877642 x 100 = -87.21%