-49.59% is the change from 490 to 247
Calculation steps:
[( 247 - 490 ) ÷ 490] x 100 = -49.59%
Formula
Percentage change = [(247 - 490) / 490] x 100
Subtract the new number by the original number
247 - 490 = -243
-243 ÷ 490 = -0.4959183673469388
-0.4959183673469388 x 100 = -49.59%