-97.94% is the change from 824 to 17
Calculation steps:
[( 17 - 824 ) ÷ 824] x 100 = -97.94%
Formula
Percentage change = [(17 - 824) / 824] x 100
Subtract the new number by the original number
17 - 824 = -807
-807 ÷ 824 = -0.9793689320388349
-0.9793689320388349 x 100 = -97.94%