-94.38% is the change from 480 to 27
Calculation steps:
[( 27 - 480 ) ÷ 480] x 100 = -94.38%
Formula
Percentage change = [(27 - 480) / 480] x 100
Subtract the new number by the original number
27 - 480 = -453
-453 ÷ 480 = -0.94375
-0.94375 x 100 = -94.38%