-72.64% is the change from 921 to 252
Calculation steps:
[( 252 - 921 ) ÷ 921] x 100 = -72.64%
Formula
Percentage change = [(252 - 921) / 921] x 100
Subtract the new number by the original number
252 - 921 = -669
-669 ÷ 921 = -0.7263843648208469
-0.7263843648208469 x 100 = -72.64%