-92.66% is the change from 286 to 21
Calculation steps:
[( 21 - 286 ) ÷ 286] x 100 = -92.66%
Formula
Percentage change = [(21 - 286) / 286] x 100
Subtract the new number by the original number
21 - 286 = -265
-265 ÷ 286 = -0.9265734265734266
-0.9265734265734266 x 100 = -92.66%