-38% is the change from 808 to 501
Calculation steps:
[( 501 - 808 ) ÷ 808] x 100 = -38%
Formula
Percentage change = [(501 - 808) / 808] x 100
Subtract the new number by the original number
501 - 808 = -307
-307 ÷ 808 = -0.37995049504950495
-0.37995049504950495 x 100 = -38%