-71.43% is the change from 287 to 82
Calculation steps:
[( 82 - 287 ) ÷ 287] x 100 = -71.43%
Formula
Percentage change = [(82 - 287) / 287] x 100
Subtract the new number by the original number
82 - 287 = -205
-205 ÷ 287 = -0.7142857142857143
-0.7142857142857143 x 100 = -71.43%