-6.91% is the change from 304 to 283
Calculation steps:
[( 283 - 304 ) ÷ 304] x 100 = -6.91%
Formula
Percentage change = [(283 - 304) / 304] x 100
Subtract the new number by the original number
283 - 304 = -21
-21 ÷ 304 = -0.06907894736842106
-0.06907894736842106 x 100 = -6.91%