-92.37% is the change from 590 to 45
Calculation steps:
[( 45 - 590 ) ÷ 590] x 100 = -92.37%
Formula
Percentage change = [(45 - 590) / 590] x 100
Subtract the new number by the original number
45 - 590 = -545
-545 ÷ 590 = -0.923728813559322
-0.923728813559322 x 100 = -92.37%