-40.11% is the change from 915 to 548
Calculation steps:
[( 548 - 915 ) ÷ 915] x 100 = -40.11%
Formula
Percentage change = [(548 - 915) / 915] x 100
Subtract the new number by the original number
548 - 915 = -367
-367 ÷ 915 = -0.4010928961748634
-0.4010928961748634 x 100 = -40.11%