-86.73% is the change from 490 to 65
Calculation steps:
[( 65 - 490 ) ÷ 490] x 100 = -86.73%
Formula
Percentage change = [(65 - 490) / 490] x 100
Subtract the new number by the original number
65 - 490 = -425
-425 ÷ 490 = -0.8673469387755102
-0.8673469387755102 x 100 = -86.73%