-77.16% is the change from 648 to 148
Calculation steps:
[( 148 - 648 ) ÷ 648] x 100 = -77.16%
Formula
Percentage change = [(148 - 648) / 648] x 100
Subtract the new number by the original number
148 - 648 = -500
-500 ÷ 648 = -0.7716049382716049
-0.7716049382716049 x 100 = -77.16%