-39.49% is the change from 471 to 285
Calculation steps:
[( 285 - 471 ) ÷ 471] x 100 = -39.49%
Formula
Percentage change = [(285 - 471) / 471] x 100
Subtract the new number by the original number
285 - 471 = -186
-186 ÷ 471 = -0.39490445859872614
-0.39490445859872614 x 100 = -39.49%