-86.73% is the change from 588 to 78
Calculation steps:
[( 78 - 588 ) ÷ 588] x 100 = -86.73%
Formula
Percentage change = [(78 - 588) / 588] x 100
Subtract the new number by the original number
78 - 588 = -510
-510 ÷ 588 = -0.8673469387755102
-0.8673469387755102 x 100 = -86.73%