-87.2% is the change from 508 to 65
Calculation steps:
[( 65 - 508 ) ÷ 508] x 100 = -87.2%
Formula
Percentage change = [(65 - 508) / 508] x 100
Subtract the new number by the original number
65 - 508 = -443
-443 ÷ 508 = -0.8720472440944882
-0.8720472440944882 x 100 = -87.2%