-90.42% is the change from 501 to 48
Calculation steps:
[( 48 - 501 ) ÷ 501] x 100 = -90.42%
Formula
Percentage change = [(48 - 501) / 501] x 100
Subtract the new number by the original number
48 - 501 = -453
-453 ÷ 501 = -0.9041916167664671
-0.9041916167664671 x 100 = -90.42%