-72.66% is the change from 845 to 231
Calculation steps:
[( 231 - 845 ) ÷ 845] x 100 = -72.66%
Formula
Percentage change = [(231 - 845) / 845] x 100
Subtract the new number by the original number
231 - 845 = -614
-614 ÷ 845 = -0.7266272189349112
-0.7266272189349112 x 100 = -72.66%