-53.67% is the change from 490 to 227
Calculation steps:
[( 227 - 490 ) ÷ 490] x 100 = -53.67%
Formula
Percentage change = [(227 - 490) / 490] x 100
Subtract the new number by the original number
227 - 490 = -263
-263 ÷ 490 = -0.536734693877551
-0.536734693877551 x 100 = -53.67%