-52.44% is the change from 164 to 78
Calculation steps:
[( 78 - 164 ) ÷ 164] x 100 = -52.44%
Formula
Percentage change = [(78 - 164) / 164] x 100
Subtract the new number by the original number
78 - 164 = -86
-86 ÷ 164 = -0.524390243902439
-0.524390243902439 x 100 = -52.44%