-95.31% is the change from 490 to 23
Calculation steps:
[( 23 - 490 ) ÷ 490] x 100 = -95.31%
Formula
Percentage change = [(23 - 490) / 490] x 100
Subtract the new number by the original number
23 - 490 = -467
-467 ÷ 490 = -0.9530612244897959
-0.9530612244897959 x 100 = -95.31%