-93.27% is the change from 980 to 66
Calculation steps:
[( 66 - 980 ) ÷ 980] x 100 = -93.27%
Formula
Percentage change = [(66 - 980) / 980] x 100
Subtract the new number by the original number
66 - 980 = -914
-914 ÷ 980 = -0.9326530612244898
-0.9326530612244898 x 100 = -93.27%