-84.26% is the change from 921 to 145
Calculation steps:
[( 145 - 921 ) ÷ 921] x 100 = -84.26%
Formula
Percentage change = [(145 - 921) / 921] x 100
Subtract the new number by the original number
145 - 921 = -776
-776 ÷ 921 = -0.8425624321389794
-0.8425624321389794 x 100 = -84.26%