-30.82% is the change from 691 to 478
Calculation steps:
[( 478 - 691 ) ÷ 691] x 100 = -30.82%
Formula
Percentage change = [(478 - 691) / 691] x 100
Subtract the new number by the original number
478 - 691 = -213
-213 ÷ 691 = -0.30824891461649784
-0.30824891461649784 x 100 = -30.82%