-70.9% is the change from 921 to 268
Calculation steps:
[( 268 - 921 ) ÷ 921] x 100 = -70.9%
Formula
Percentage change = [(268 - 921) / 921] x 100
Subtract the new number by the original number
268 - 921 = -653
-653 ÷ 921 = -0.7090119435396308
-0.7090119435396308 x 100 = -70.9%