-78.47% is the change from 720 to 155
Calculation steps:
[( 155 - 720 ) ÷ 720] x 100 = -78.47%
Formula
Percentage change = [(155 - 720) / 720] x 100
Subtract the new number by the original number
155 - 720 = -565
-565 ÷ 720 = -0.7847222222222222
-0.7847222222222222 x 100 = -78.47%