-50.05% is the change from 959 to 479
Calculation steps:
[( 479 - 959 ) ÷ 959] x 100 = -50.05%
Formula
Percentage change = [(479 - 959) / 959] x 100
Subtract the new number by the original number
479 - 959 = -480
-480 ÷ 959 = -0.5005213764337852
-0.5005213764337852 x 100 = -50.05%