-57.08% is the change from 487 to 209
Calculation steps:
[( 209 - 487 ) ÷ 487] x 100 = -57.08%
Formula
Percentage change = [(209 - 487) / 487] x 100
Subtract the new number by the original number
209 - 487 = -278
-278 ÷ 487 = -0.5708418891170431
-0.5708418891170431 x 100 = -57.08%