-53.88% is the change from 915 to 422
Calculation steps:
[( 422 - 915 ) ÷ 915] x 100 = -53.88%
Formula
Percentage change = [(422 - 915) / 915] x 100
Subtract the new number by the original number
422 - 915 = -493
-493 ÷ 915 = -0.5387978142076503
-0.5387978142076503 x 100 = -53.88%