-91.9% is the change from 284 to 23
Calculation steps:
[( 23 - 284 ) ÷ 284] x 100 = -91.9%
Formula
Percentage change = [(23 - 284) / 284] x 100
Subtract the new number by the original number
23 - 284 = -261
-261 ÷ 284 = -0.9190140845070423
-0.9190140845070423 x 100 = -91.9%