-3.87% is the change from 801 to 770
Calculation steps:
[( 770 - 801 ) ÷ 801] x 100 = -3.87%
Formula
Percentage change = [(770 - 801) / 801] x 100
Subtract the new number by the original number
770 - 801 = -31
-31 ÷ 801 = -0.03870162297128589
-0.03870162297128589 x 100 = -3.87%