-47.45% is the change from 961 to 505
Calculation steps:
[( 505 - 961 ) ÷ 961] x 100 = -47.45%
Formula
Percentage change = [(505 - 961) / 961] x 100
Subtract the new number by the original number
505 - 961 = -456
-456 ÷ 961 = -0.4745057232049948
-0.4745057232049948 x 100 = -47.45%