-71.22% is the change from 966 to 278
Calculation steps:
[( 278 - 966 ) ÷ 966] x 100 = -71.22%
Formula
Percentage change = [(278 - 966) / 966] x 100
Subtract the new number by the original number
278 - 966 = -688
-688 ÷ 966 = -0.7122153209109731
-0.7122153209109731 x 100 = -71.22%