-79.45% is the change from 511 to 105
Calculation steps:
[( 105 - 511 ) ÷ 511] x 100 = -79.45%
Formula
Percentage change = [(105 - 511) / 511] x 100
Subtract the new number by the original number
105 - 511 = -406
-406 ÷ 511 = -0.7945205479452054
-0.7945205479452054 x 100 = -79.45%