-76.51% is the change from 281 to 66
Calculation steps:
[( 66 - 281 ) ÷ 281] x 100 = -76.51%
Formula
Percentage change = [(66 - 281) / 281] x 100
Subtract the new number by the original number
66 - 281 = -215
-215 ÷ 281 = -0.7651245551601423
-0.7651245551601423 x 100 = -76.51%