-83.79% is the change from 919 to 149
Calculation steps:
[( 149 - 919 ) ÷ 919] x 100 = -83.79%
Formula
Percentage change = [(149 - 919) / 919] x 100
Subtract the new number by the original number
149 - 919 = -770
-770 ÷ 919 = -0.8378672470076169
-0.8378672470076169 x 100 = -83.79%