-85.45% is the change from 921 to 134
Calculation steps:
[( 134 - 921 ) ÷ 921] x 100 = -85.45%
Formula
Percentage change = [(134 - 921) / 921] x 100
Subtract the new number by the original number
134 - 921 = -787
-787 ÷ 921 = -0.8545059717698155
-0.8545059717698155 x 100 = -85.45%