-54.41% is the change from 623 to 284
Calculation steps:
[( 284 - 623 ) ÷ 623] x 100 = -54.41%
Formula
Percentage change = [(284 - 623) / 623] x 100
Subtract the new number by the original number
284 - 623 = -339
-339 ÷ 623 = -0.5441412520064205
-0.5441412520064205 x 100 = -54.41%