-95.11% is the change from 511 to 25
Calculation steps:
[( 25 - 511 ) ÷ 511] x 100 = -95.11%
Formula
Percentage change = [(25 - 511) / 511] x 100
Subtract the new number by the original number
25 - 511 = -486
-486 ÷ 511 = -0.9510763209393346
-0.9510763209393346 x 100 = -95.11%