-27.2% is the change from 353 to 257
Calculation steps:
[( 257 - 353 ) ÷ 353] x 100 = -27.2%
Formula
Percentage change = [(257 - 353) / 353] x 100
Subtract the new number by the original number
257 - 353 = -96
-96 ÷ 353 = -0.2719546742209632
-0.2719546742209632 x 100 = -27.2%