-60.79% is the change from 635 to 249
Calculation steps:
[( 249 - 635 ) ÷ 635] x 100 = -60.79%
Formula
Percentage change = [(249 - 635) / 635] x 100
Subtract the new number by the original number
249 - 635 = -386
-386 ÷ 635 = -0.6078740157480315
-0.6078740157480315 x 100 = -60.79%