-78.28% is the change from 511 to 111
Calculation steps:
[( 111 - 511 ) ÷ 511] x 100 = -78.28%
Formula
Percentage change = [(111 - 511) / 511] x 100
Subtract the new number by the original number
111 - 511 = -400
-400 ÷ 511 = -0.7827788649706457
-0.7827788649706457 x 100 = -78.28%