-32.24% is the change from 980 to 664
Calculation steps:
[( 664 - 980 ) ÷ 980] x 100 = -32.24%
Formula
Percentage change = [(664 - 980) / 980] x 100
Subtract the new number by the original number
664 - 980 = -316
-316 ÷ 980 = -0.3224489795918367
-0.3224489795918367 x 100 = -32.24%