-80.76% is the change from 473 to 91
Calculation steps:
[( 91 - 473 ) ÷ 473] x 100 = -80.76%
Formula
Percentage change = [(91 - 473) / 473] x 100
Subtract the new number by the original number
91 - 473 = -382
-382 ÷ 473 = -0.8076109936575053
-0.8076109936575053 x 100 = -80.76%