-52.23% is the change from 538 to 257
Calculation steps:
[( 257 - 538 ) ÷ 538] x 100 = -52.23%
Formula
Percentage change = [(257 - 538) / 538] x 100
Subtract the new number by the original number
257 - 538 = -281
-281 ÷ 538 = -0.5223048327137546
-0.5223048327137546 x 100 = -52.23%