-93.75% is the change from 720 to 45
Calculation steps:
[( 45 - 720 ) ÷ 720] x 100 = -93.75%
Formula
Percentage change = [(45 - 720) / 720] x 100
Subtract the new number by the original number
45 - 720 = -675
-675 ÷ 720 = -0.9375
-0.9375 x 100 = -93.75%