-41.8% is the change from 921 to 536
Calculation steps:
[( 536 - 921 ) ÷ 921] x 100 = -41.8%
Formula
Percentage change = [(536 - 921) / 921] x 100
Subtract the new number by the original number
536 - 921 = -385
-385 ÷ 921 = -0.4180238870792617
-0.4180238870792617 x 100 = -41.8%