-89.43% is the change from 937 to 99
Calculation steps:
[( 99 - 937 ) ÷ 937] x 100 = -89.43%
Formula
Percentage change = [(99 - 937) / 937] x 100
Subtract the new number by the original number
99 - 937 = -838
-838 ÷ 937 = -0.8943436499466382
-0.8943436499466382 x 100 = -89.43%