-47.3% is the change from 148 to 78
Calculation steps:
[( 78 - 148 ) ÷ 148] x 100 = -47.3%
Formula
Percentage change = [(78 - 148) / 148] x 100
Subtract the new number by the original number
78 - 148 = -70
-70 ÷ 148 = -0.47297297297297297
-0.47297297297297297 x 100 = -47.3%