-92.91% is the change from 903 to 64
Calculation steps:
[( 64 - 903 ) ÷ 903] x 100 = -92.91%
Formula
Percentage change = [(64 - 903) / 903] x 100
Subtract the new number by the original number
64 - 903 = -839
-839 ÷ 903 = -0.929125138427464
-0.929125138427464 x 100 = -92.91%