-50.92% is the change from 921 to 452
Calculation steps:
[( 452 - 921 ) ÷ 921] x 100 = -50.92%
Formula
Percentage change = [(452 - 921) / 921] x 100
Subtract the new number by the original number
452 - 921 = -469
-469 ÷ 921 = -0.509229098805646
-0.509229098805646 x 100 = -50.92%