-38.52% is the change from 405 to 249
Calculation steps:
[( 249 - 405 ) ÷ 405] x 100 = -38.52%
Formula
Percentage change = [(249 - 405) / 405] x 100
Subtract the new number by the original number
249 - 405 = -156
-156 ÷ 405 = -0.3851851851851852
-0.3851851851851852 x 100 = -38.52%