-91.22% is the change from 843 to 74
Calculation steps:
[( 74 - 843 ) ÷ 843] x 100 = -91.22%
Formula
Percentage change = [(74 - 843) / 843] x 100
Subtract the new number by the original number
74 - 843 = -769
-769 ÷ 843 = -0.9122182680901542
-0.9122182680901542 x 100 = -91.22%