-83.9% is the change from 938 to 151
Calculation steps:
[( 151 - 938 ) ÷ 938] x 100 = -83.9%
Formula
Percentage change = [(151 - 938) / 938] x 100
Subtract the new number by the original number
151 - 938 = -787
-787 ÷ 938 = -0.8390191897654584
-0.8390191897654584 x 100 = -83.9%