-18.37% is the change from 283 to 231
Calculation steps:
[( 231 - 283 ) ÷ 283] x 100 = -18.37%
Formula
Percentage change = [(231 - 283) / 283] x 100
Subtract the new number by the original number
231 - 283 = -52
-52 ÷ 283 = -0.18374558303886926
-0.18374558303886926 x 100 = -18.37%