-73.4% is the change from 827 to 220
Calculation steps:
[( 220 - 827 ) ÷ 827] x 100 = -73.4%
Formula
Percentage change = [(220 - 827) / 827] x 100
Subtract the new number by the original number
220 - 827 = -607
-607 ÷ 827 = -0.7339782345828295
-0.7339782345828295 x 100 = -73.4%