-93.36% is the change from 678 to 45
Calculation steps:
[( 45 - 678 ) ÷ 678] x 100 = -93.36%
Formula
Percentage change = [(45 - 678) / 678] x 100
Subtract the new number by the original number
45 - 678 = -633
-633 ÷ 678 = -0.9336283185840708
-0.9336283185840708 x 100 = -93.36%