-52.5% is the change from 541 to 257
Calculation steps:
[( 257 - 541 ) ÷ 541] x 100 = -52.5%
Formula
Percentage change = [(257 - 541) / 541] x 100
Subtract the new number by the original number
257 - 541 = -284
-284 ÷ 541 = -0.5249537892791127
-0.5249537892791127 x 100 = -52.5%