-95.01% is the change from 521 to 26
Calculation steps:
[( 26 - 521 ) ÷ 521] x 100 = -95.01%
Formula
Percentage change = [(26 - 521) / 521] x 100
Subtract the new number by the original number
26 - 521 = -495
-495 ÷ 521 = -0.9500959692898272
-0.9500959692898272 x 100 = -95.01%