-31.07% is the change from 177 to 122
Calculation steps:
[( 122 - 177 ) ÷ 177] x 100 = -31.07%
Formula
Percentage change = [(122 - 177) / 177] x 100
Subtract the new number by the original number
122 - 177 = -55
-55 ÷ 177 = -0.3107344632768362
-0.3107344632768362 x 100 = -31.07%