-47.02% is the change from 470 to 249
Calculation steps:
[( 249 - 470 ) ÷ 470] x 100 = -47.02%
Formula
Percentage change = [(249 - 470) / 470] x 100
Subtract the new number by the original number
249 - 470 = -221
-221 ÷ 470 = -0.4702127659574468
-0.4702127659574468 x 100 = -47.02%