-19.43% is the change from 283 to 228
Calculation steps:
[( 228 - 283 ) ÷ 283] x 100 = -19.43%
Formula
Percentage change = [(228 - 283) / 283] x 100
Subtract the new number by the original number
228 - 283 = -55
-55 ÷ 283 = -0.19434628975265017
-0.19434628975265017 x 100 = -19.43%