-63.83% is the change from 47 to 17
Calculation steps:
[( 17 - 47 ) ÷ 47] x 100 = -63.83%
Formula
Percentage change = [(17 - 47) / 47] x 100
Subtract the new number by the original number
17 - 47 = -30
-30 ÷ 47 = -0.6382978723404256
-0.6382978723404256 x 100 = -63.83%