-18.78% is the change from 948 to 770
Calculation steps:
[( 770 - 948 ) ÷ 948] x 100 = -18.78%
Formula
Percentage change = [(770 - 948) / 948] x 100
Subtract the new number by the original number
770 - 948 = -178
-178 ÷ 948 = -0.1877637130801688
-0.1877637130801688 x 100 = -18.78%