-71.22% is the change from 973 to 280
Calculation steps:
[( 280 - 973 ) ÷ 973] x 100 = -71.22%
Formula
Percentage change = [(280 - 973) / 973] x 100
Subtract the new number by the original number
280 - 973 = -693
-693 ÷ 973 = -0.7122302158273381
-0.7122302158273381 x 100 = -71.22%