-73.88% is the change from 850 to 222
Calculation steps:
[( 222 - 850 ) ÷ 850] x 100 = -73.88%
Formula
Percentage change = [(222 - 850) / 850] x 100
Subtract the new number by the original number
222 - 850 = -628
-628 ÷ 850 = -0.7388235294117647
-0.7388235294117647 x 100 = -73.88%