-87.25% is the change from 494 to 63
Calculation steps:
[( 63 - 494 ) ÷ 494] x 100 = -87.25%
Formula
Percentage change = [(63 - 494) / 494] x 100
Subtract the new number by the original number
63 - 494 = -431
-431 ÷ 494 = -0.8724696356275303
-0.8724696356275303 x 100 = -87.25%