-71.5% is the change from 958 to 273
Calculation steps:
[( 273 - 958 ) ÷ 958] x 100 = -71.5%
Formula
Percentage change = [(273 - 958) / 958] x 100
Subtract the new number by the original number
273 - 958 = -685
-685 ÷ 958 = -0.7150313152400835
-0.7150313152400835 x 100 = -71.5%