-16.49% is the change from 285 to 238
Calculation steps:
[( 238 - 285 ) ÷ 285] x 100 = -16.49%
Formula
Percentage change = [(238 - 285) / 285] x 100
Subtract the new number by the original number
238 - 285 = -47
-47 ÷ 285 = -0.1649122807017544
-0.1649122807017544 x 100 = -16.49%