-30.38% is the change from 948 to 660
Calculation steps:
[( 660 - 948 ) ÷ 948] x 100 = -30.38%
Formula
Percentage change = [(660 - 948) / 948] x 100
Subtract the new number by the original number
660 - 948 = -288
-288 ÷ 948 = -0.3037974683544304
-0.3037974683544304 x 100 = -30.38%