-57.7% is the change from 662 to 280
Calculation steps:
[( 280 - 662 ) ÷ 662] x 100 = -57.7%
Formula
Percentage change = [(280 - 662) / 662] x 100
Subtract the new number by the original number
280 - 662 = -382
-382 ÷ 662 = -0.5770392749244713
-0.5770392749244713 x 100 = -57.7%