-16.18% is the change from 921 to 772
Calculation steps:
[( 772 - 921 ) ÷ 921] x 100 = -16.18%
Formula
Percentage change = [(772 - 921) / 921] x 100
Subtract the new number by the original number
772 - 921 = -149
-149 ÷ 921 = -0.16178067318132464
-0.16178067318132464 x 100 = -16.18%