-14.9% is the change from 302 to 257
Calculation steps:
[( 257 - 302 ) ÷ 302] x 100 = -14.9%
Formula
Percentage change = [(257 - 302) / 302] x 100
Subtract the new number by the original number
257 - 302 = -45
-45 ÷ 302 = -0.1490066225165563
-0.1490066225165563 x 100 = -14.9%