-87.8% is the change from 410 to 50
Calculation steps:
[( 50 - 410 ) ÷ 410] x 100 = -87.8%
Formula
Percentage change = [(50 - 410) / 410] x 100
Subtract the new number by the original number
50 - 410 = -360
-360 ÷ 410 = -0.8780487804878049
-0.8780487804878049 x 100 = -87.8%