-93.44% is the change from 686 to 45
Calculation steps:
[( 45 - 686 ) ÷ 686] x 100 = -93.44%
Formula
Percentage change = [(45 - 686) / 686] x 100
Subtract the new number by the original number
45 - 686 = -641
-641 ÷ 686 = -0.934402332361516
-0.934402332361516 x 100 = -93.44%