-74.3% is the change from 899 to 231
Calculation steps:
[( 231 - 899 ) ÷ 899] x 100 = -74.3%
Formula
Percentage change = [(231 - 899) / 899] x 100
Subtract the new number by the original number
231 - 899 = -668
-668 ÷ 899 = -0.743047830923248
-0.743047830923248 x 100 = -74.3%