-67.11% is the change from 824 to 271
Calculation steps:
[( 271 - 824 ) ÷ 824] x 100 = -67.11%
Formula
Percentage change = [(271 - 824) / 824] x 100
Subtract the new number by the original number
271 - 824 = -553
-553 ÷ 824 = -0.6711165048543689
-0.6711165048543689 x 100 = -67.11%