-4.59% is the change from 283 to 270
Calculation steps:
[( 270 - 283 ) ÷ 283] x 100 = -4.59%
Formula
Percentage change = [(270 - 283) / 283] x 100
Subtract the new number by the original number
270 - 283 = -13
-13 ÷ 283 = -0.045936395759717315
-0.045936395759717315 x 100 = -4.59%