-58.5% is the change from 665 to 276
Calculation steps:
[( 276 - 665 ) ÷ 665] x 100 = -58.5%
Formula
Percentage change = [(276 - 665) / 665] x 100
Subtract the new number by the original number
276 - 665 = -389
-389 ÷ 665 = -0.5849624060150376
-0.5849624060150376 x 100 = -58.5%