-92.92% is the change from 720 to 51
Calculation steps:
[( 51 - 720 ) ÷ 720] x 100 = -92.92%
Formula
Percentage change = [(51 - 720) / 720] x 100
Subtract the new number by the original number
51 - 720 = -669
-669 ÷ 720 = -0.9291666666666667
-0.9291666666666667 x 100 = -92.92%