-42.96% is the change from 945 to 539
Calculation steps:
[( 539 - 945 ) ÷ 945] x 100 = -42.96%
Formula
Percentage change = [(539 - 945) / 945] x 100
Subtract the new number by the original number
539 - 945 = -406
-406 ÷ 945 = -0.42962962962962964
-0.42962962962962964 x 100 = -42.96%