-94.74% is the change from 970 to 51
Calculation steps:
[( 51 - 970 ) ÷ 970] x 100 = -94.74%
Formula
Percentage change = [(51 - 970) / 970] x 100
Subtract the new number by the original number
51 - 970 = -919
-919 ÷ 970 = -0.9474226804123711
-0.9474226804123711 x 100 = -94.74%