-51.22% is the change from 492 to 240
Calculation steps:
[( 240 - 492 ) ÷ 492] x 100 = -51.22%
Formula
Percentage change = [(240 - 492) / 492] x 100
Subtract the new number by the original number
240 - 492 = -252
-252 ÷ 492 = -0.5121951219512195
-0.5121951219512195 x 100 = -51.22%