-69.7% is the change from 924 to 280
Calculation steps:
[( 280 - 924 ) ÷ 924] x 100 = -69.7%
Formula
Percentage change = [(280 - 924) / 924] x 100
Subtract the new number by the original number
280 - 924 = -644
-644 ÷ 924 = -0.696969696969697
-0.696969696969697 x 100 = -69.7%