-84.79% is the change from 263 to 40
Calculation steps:
[( 40 - 263 ) ÷ 263] x 100 = -84.79%
Formula
Percentage change = [(40 - 263) / 263] x 100
Subtract the new number by the original number
40 - 263 = -223
-223 ÷ 263 = -0.8479087452471483
-0.8479087452471483 x 100 = -84.79%