-94.8% is the change from 980 to 51
Calculation steps:
[( 51 - 980 ) ÷ 980] x 100 = -94.8%
Formula
Percentage change = [(51 - 980) / 980] x 100
Subtract the new number by the original number
51 - 980 = -929
-929 ÷ 980 = -0.9479591836734694
-0.9479591836734694 x 100 = -94.8%