-91.5% is the change from 588 to 50
Calculation steps:
[( 50 - 588 ) ÷ 588] x 100 = -91.5%
Formula
Percentage change = [(50 - 588) / 588] x 100
Subtract the new number by the original number
50 - 588 = -538
-538 ÷ 588 = -0.9149659863945578
-0.9149659863945578 x 100 = -91.5%