-71.34% is the change from 921 to 264
Calculation steps:
[( 264 - 921 ) ÷ 921] x 100 = -71.34%
Formula
Percentage change = [(264 - 921) / 921] x 100
Subtract the new number by the original number
264 - 921 = -657
-657 ÷ 921 = -0.7133550488599348
-0.7133550488599348 x 100 = -71.34%