91.54% is the change from 331 to 634
Calculation steps:
[( 634 - 331 ) ÷ 331] x 100 = 91.54%
Formula
Percentage change = [(634 - 331) / 331] x 100
Subtract the new number by the original number
634 - 331 = 303
303 ÷ 331 = 0.9154078549848943
0.9154078549848943 x 100 = 91.54%