-79.08% is the change from 502 to 105
Calculation steps:
[( 105 - 502 ) ÷ 502] x 100 = -79.08%
Formula
Percentage change = [(105 - 502) / 502] x 100
Subtract the new number by the original number
105 - 502 = -397
-397 ÷ 502 = -0.7908366533864541
-0.7908366533864541 x 100 = -79.08%