-80.88% is the change from 476 to 91
Calculation steps:
[( 91 - 476 ) ÷ 476] x 100 = -80.88%
Formula
Percentage change = [(91 - 476) / 476] x 100
Subtract the new number by the original number
91 - 476 = -385
-385 ÷ 476 = -0.8088235294117647
-0.8088235294117647 x 100 = -80.88%