-80.3% is the change from 462 to 91
Calculation steps:
[( 91 - 462 ) ÷ 462] x 100 = -80.3%
Formula
Percentage change = [(91 - 462) / 462] x 100
Subtract the new number by the original number
91 - 462 = -371
-371 ÷ 462 = -0.803030303030303
-0.803030303030303 x 100 = -80.3%