-77.11% is the change from 249 to 57
Calculation steps:
[( 57 - 249 ) ÷ 249] x 100 = -77.11%
Formula
Percentage change = [(57 - 249) / 249] x 100
Subtract the new number by the original number
57 - 249 = -192
-192 ÷ 249 = -0.7710843373493976
-0.7710843373493976 x 100 = -77.11%