-64.2% is the change from 257 to 92
Calculation steps:
[( 92 - 257 ) ÷ 257] x 100 = -64.2%
Formula
Percentage change = [(92 - 257) / 257] x 100
Subtract the new number by the original number
92 - 257 = -165
-165 ÷ 257 = -0.642023346303502
-0.642023346303502 x 100 = -64.2%