-7.29% is the change from 850 to 788
Calculation steps:
[( 788 - 850 ) ÷ 850] x 100 = -7.29%
Formula
Percentage change = [(788 - 850) / 850] x 100
Subtract the new number by the original number
788 - 850 = -62
-62 ÷ 850 = -0.07294117647058823
-0.07294117647058823 x 100 = -7.29%