-15.9% is the change from 283 to 238
Calculation steps:
[( 238 - 283 ) ÷ 283] x 100 = -15.9%
Formula
Percentage change = [(238 - 283) / 283] x 100
Subtract the new number by the original number
238 - 283 = -45
-45 ÷ 283 = -0.15901060070671377
-0.15901060070671377 x 100 = -15.9%