-43.47% is the change from 490 to 277
Calculation steps:
[( 277 - 490 ) ÷ 490] x 100 = -43.47%
Formula
Percentage change = [(277 - 490) / 490] x 100
Subtract the new number by the original number
277 - 490 = -213
-213 ÷ 490 = -0.4346938775510204
-0.4346938775510204 x 100 = -43.47%