-97.3% is the change from 740 to 20
Calculation steps:
[( 20 - 740 ) ÷ 740] x 100 = -97.3%
Formula
Percentage change = [(20 - 740) / 740] x 100
Subtract the new number by the original number
20 - 740 = -720
-720 ÷ 740 = -0.972972972972973
-0.972972972972973 x 100 = -97.3%